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Edwin H. Armstrong papers, 1886-1982, bulk 1912-1954

Summary Information

At a Glance

Call No.: MS#0043
Bib ID 4078687 View CLIO record
Creator(s) Armstrong, Edwin H (Edwin Howard), 1890-1954
Title Edwin H. Armstrong papers, 1886-1982, bulk 1912-1954
Physical Description 295.7 linear feet (297 boxes, 2 flat folders, 30 phono discs, 10 tape reels)
Language(s) English .
Access

The following boxes are located off-site: 2-573. You will need to request this material from the Rare Book and Manuscript Library at least three business days in advance to use the collection in the Rare Book and Manuscript Library reading room.

This collection has no restrictions.

Arrangement

Arrangement

This collection is arranged in 6 series.

Description

Summary

Professional and personal files including Armstrong's correspondence with professional associations, other engineers, and friends, his research notes, circuit diagrams, lectures, articles, legal papers, and other related materials. Of his many inventions and developments, the most important are: 1) the regenerative or feedback circuit, 1912, the first amplified radio reception, 2) the superheterodyne circuit, 1918, the basis of modern radio and radar, 3) superregeneration, 1922, a very simple, high-power receiver now used in emergency mobile service, and 4) frequency modulation - FM, 1933, static-free radio reception of high fidelity. More than half the files concern his many lawsuits, primarily with Radio Corporation of America, over infringement of the Armstrong patents. Litigation continued until 1967. Other files deal with his work in the Marcellus Hartley Research Laboratory at Columbia University, 1913-1935, and with the American Expeditionary Forces in France during World War I, his Air Force contracts for communications development, Army research during World War II, the Radio Club of America, the Institute of Radio Engineers, FM development at his radio station at Alpine, N.J., the use of FM in television, his involvement in Federal Communications Commission hearings and legislation, and his work with the Zenith Radio Corporation. Also, letters to H.J. Round

1990 ADDITION: Files from the firm of Cravath, Swaine& Moore. Files, dating from the late 1920s to the 1960s, pertaining to Professor Armstrong's litigation with Lee de Forest over the regeneration patents; his suit against RCA and other infringers of his FM patents; the original letters patent, among which are those for his FM system; and financial matters relating to the Armstrong laboratories, the FM station in Alpine, New Jersey, other real estate properties, and his estate

  • Series I: Correspondence, 1910-1975

    This series is divided into the following five types of correspondence: general, catalogued, early, laboratory and carbon correspondence. The catalogued correspondence is alphabetical by correspondent. The remainder of the series is chronological with the general containing schematic drawings, notes and photographs. Diagrams and notes on the regenerative circuit and superheterodyne can be found along with correspondence with Armstrong's sisters, Ethel and Edith, as well as his mother, Emily, and Charles Underhill, H.J. Round, C.V. Logwood and Irving Langmuir. The first box within this series contains the contents of a binder entitled "Instructions for Filing." These materials appear to indicate the manner in which Armstrong originally titled and filed various materials within his office and laboratory.

  • Series II: Writings of EHA, 1913-1953

    These records are organized chronologically. Many are standard publications written by E.H. Armstrong, some are annotated. There are drafts with annotations which are typically addresses or speeches. Also included are newspaper articles, statements and testimony.

  • Series III: Clippings, 1912-1954

    Armstrong maintained clipping files on a variety of topics directly relating to his work. These materials appear to be organized as Armstrong left them. With the exception of the first box, the series is organized chronologically.

  • Series IV: Alphabetical Files, 1886-1980

    This series is comprised of a large set of files which appears to have been Armstrong's filing system, which was expanded upon at a later date to include litigation, the Armstrong Memorial Research Foundation Files, and others. This series is organized alphabetically by both name and subject.

    Throughout the series there are folders which are filed by individual name. The majority are engineering publications, filed by author. Others contain legal statements, testimony, correspondence and memoranda.

    There are also large sets of litigation files, which contain material relating to specific cases, generally filed by defendant. These files contain testimony, transcripts, abstracts, notes, disclosures, technical reports and papers, license agreements, articles, press releases, correspondence, legal memoranda, instruction manuals, exhibits and patent file wrappers. Large amounts of Armstrong's and relevant others original work including correspondence, diagrams, notes, testing data, photographs, notebooks, logbooks, and patent disclosures used in exhibits can be found under litigation files as well. The following organizations can be found amongst litigation; Admiral Corp., American Telephone & Telegraph, Co., Arvin Industries, Avco Corp., Bendix Radio and Aviation Corp,. De Forest Radio and Telegraph Co., DuMont Laboratories, Emerson Radio, FADA Radio and Electric Co., Gilfillan Bros., Hoffman Radio Corp., Fred M. Link, Motorola, Inc., Packard-Bell Co., Philco Corp., Radio and Television, Inc., Radio Corp. of America and the National Broadcasting Corp., the Radio Craftsman, Inc., Sentinel Radio, Sylvania Electric Products, Inc. and Wells-Gardner and Co. The litigation files found within this series should be researched in conjunction with series five as the two overlap.

  • Series V: Records of Cravath, Swaine and Moore and Other Legal Firms, 1901-1982

    This series encompasses materials given to Columbia University by a variety of legal firms who had represented Armstrong and his wife, Marion, in litigation or estate matters. The bulk of the records came from Cravath, Swaine and Moore, Darby and Darby, Brumbaugh, Graves, Donohue and Raymond, and Pennie and Edmunds. These materials relate directly to the administration of the Edwin H. Armstrong estate, but many of Armstrong's original writings, disclosures, schematic drawings and notes can be found within this series, most prominently within the litigation files. Financial records for Armstrong's laboratories at Columbia University and at Alpine, New Jersey are included here as well.

  • Series VI: Photographs, Negatives and Lantern Slides, 1886-1967

    This series contains photographic media, arranged alphabetically. They are separated into two different types of materials; photographs with the negatives, followed by lantern slides. The series spans the course of Armstrong's life including childhood, military service in WWI, and his work in the Marcellus Hartley Laboratory at Columbia University. Images of the apparatus used in the development of regenerative circuit, the superheterodyne circuit and FM radio are also included. The FM-radio materials include the first tests of FM at the Empire State Building, Westhampton Beach, New York and Haddonfield, New Jersey, construction and operation of the first FM tower at Alpine, NJ, and the Yankee Network. Lantern slides that are duplicated in the photographs or negative are marked as "duplicate."

Using the Collection

Rare Book and Manuscript Library

Restrictions on Access

The following boxes are located off-site: 2-573. You will need to request this material from the Rare Book and Manuscript Library at least three business days in advance to use the collection in the Rare Book and Manuscript Library reading room.

This collection has no restrictions.

Terms Governing Use and Reproduction

Single photocopies may be made for research purposes. Permission to publish material from the collection must be requested from the Curator of Manuscripts/University Archivist, Rare Book and Manuscript Library (RBML). The RBML approves permission to publish that which it physically owns; the responsibility to secure copyright permission rests with the patron.

Preferred Citation

Identification of specific item; Date (if known); Edwin H. Armstrong Papers; Box and Folder; Rare Book and Manuscript Library, Columbia University Library.

Selected Related Material-- at Columbia

James Laurence Fly Papers 1920-1977, Rare Book and Manuscript Library, Columbia University Libraries

Michael Idvorsky Pupin Papers 1800-1995, Rare Book and Manuscript Library, Columbia University Libraries

Archived Web Site of the Armstrong Memorial Research Foundation, 2013-present, Columbia University Libraries

George H. Clark Radioana Collection, c. 1880-1950, Archives Center, National Museum of American History, Smithsonian Institution, Washington, DC

Records of the Federal Communications Commission, National Archives, Washington, DC

Records of the National Institute of Standards and Technology, National Archives, Washington, DC

United States Army Communications Electronics Museum, Fort Monmouth, New Jersey

Accrual

No accruals are expected

Acquisition

The Armstrong Memorial Research Foundation,1977; Harold A. Wheeler, 1983; Pennie, Davis, Marvin & Edmonds, 1983; Keith E. Mullinger [Pennie, Davis, Marvin & Edmonds], 1984; Jerry Granat via the Armstrong Memorial Research Foundation, 1985; Cravath, Swaine and Moore, 1991; Columbia University Amateur Radio Club (W2AEE) via Henry Alvestad, 1992; Robin John Morecroft, 1995; Purchase, 1995; Dana Raymond [Brumbaugh, Graves, Donohoe & Raymond], 1997; Nancy Hull, 2007; Carlton Moseley, 2010; Steve McGrath, 2011.

Gift of the Armstrong Memorial Research Foundation, 1977.

Gift of Keith E. Mullinger, 1983.

Gift of Pennie & Edmonds, 1984.

Gift of Jerry Granat, via the Armstrong Memorial Research Foundation, 1985.

Gift of Cravath, Swaine& Moore, 1990.

Gift of the C.U. Amateur Radio Club (W2AEE) via Henry Alvestad, 1992.

About the Finding Aid / Processing Information

Columbia University Libraries, Rare Book and Manuscript Library

Sponsor Information

The processing of this collection was made possible through the generous support of the Armstrong Memorial Research Foundation, the IEEE Foundation, the IEEE Communications Society, the IEEE Circuits and Systems Society, the Alcatel-Lucent Foundation, Columbia University's Department of Electrical Engineering, and the Fu Foundation School of Engineering and Applied Science.

Processing Information

Cataloged Christina Hilton Fenn 03/24/1989.

Papers Processed AH 02/06/1991.

Laboratory notebook Processed HR 06/02/1992.

This collection was processed by Jennifer Comins; Carolyn Smith; Jennifer Howard, GS EE '11; Hilary Hanson, CC '11; Brian Mackus, GS '12; and Meredith Wisner, Pratt Institute, MLIS '11. Finding aid written by Jennifer Comins in October 2010.

Revision Description

2010-12-08 xml document instance created by Jennifer S. Comins

2019-05-20 EAD was imported spring 2019 as part of the ArchivesSpace Phase II migration.

Subject Headings

The subject headings listed below are found in this collection. Links below allow searches at Columbia University through the Archival Collections Portal and through CLIO, the catalog for Columbia University Libraries, as well as ArchiveGRID, a catalog that allows users to search the holdings of multiple research libraries and archives.

All links open new windows.

Genre/Form

Heading "CUL Archives:"
"Portal"
"CUL Collections:"
"CLIO"
"Nat'l / Int'l Archives:"
"ArchivedGRID"
Abstracts (summaries) Portal CLIO ArchiveGRID
Account books Portal CLIO ArchiveGRID
Agreements Portal CLIO ArchiveGRID
Annual reports Portal CLIO ArchiveGRID
Applications Portal CLIO ArchiveGRID
Articles Portal CLIO ArchiveGRID
Audiocassettes Portal CLIO ArchiveGRID
Audiotapes Portal CLIO ArchiveGRID
Bank statements Portal CLIO ArchiveGRID
Bibliographies Portal CLIO ArchiveGRID
Bills (financial) Portal CLIO ArchiveGRID
Biographies (literary works) Portal CLIO ArchiveGRID
Briefs Portal CLIO ArchiveGRID
Bylaws (administrative records) Portal CLIO ArchiveGRID
Charters Portal CLIO ArchiveGRID
Charts (graphic documents) Portal CLIO ArchiveGRID
Check stubs Portal CLIO ArchiveGRID
Checkbooks Portal CLIO ArchiveGRID
Clippings (Information Artifacts) Portal CLIO ArchiveGRID
Contracts Portal CLIO ArchiveGRID
Diagrams Portal CLIO ArchiveGRID
Dockets Portal CLIO ArchiveGRID
Financial records Portal CLIO ArchiveGRID
Glass plate negatives Portal CLIO ArchiveGRID
Graphs Portal CLIO ArchiveGRID
Insurance policies Portal CLIO ArchiveGRID
Inventories Portal CLIO ArchiveGRID
Lantern slides Portal CLIO ArchiveGRID
Lectures Portal CLIO ArchiveGRID
Letters patent Portal CLIO ArchiveGRID
Manuals (instructional materials) Portal CLIO ArchiveGRID
Maps (documents) Portal CLIO ArchiveGRID
Memorandums Portal CLIO ArchiveGRID
Notebooks Portal CLIO ArchiveGRID
Notes (documents) Portal CLIO ArchiveGRID
Patents Portal CLIO ArchiveGRID
Petitions Portal CLIO ArchiveGRID
Photographic prints Portal CLIO ArchiveGRID
Photographs Portal CLIO ArchiveGRID
Proceedings (reports) Portal CLIO ArchiveGRID
Regulations (executive records) Portal CLIO ArchiveGRID
Releases Portal CLIO ArchiveGRID
Reports Portal CLIO ArchiveGRID
Slides (photographs) Portal CLIO ArchiveGRID
Sound recordings Portal CLIO ArchiveGRID
Statistics Portal CLIO ArchiveGRID
Subpoenas Portal CLIO ArchiveGRID
Surveys (documents) Portal CLIO ArchiveGRID
Tax returns Portal CLIO ArchiveGRID
Technical drawings Portal CLIO ArchiveGRID
Transcripts Portal CLIO ArchiveGRID
Wills Portal CLIO ArchiveGRID
blueprints (reprographic copies) Portal CLIO ArchiveGRID
indexes (reference sources) Portal CLIO ArchiveGRID
logs (records) Portal CLIO ArchiveGRID
negatives (photographs) Portal CLIO ArchiveGRID

Subject

Heading "CUL Archives:"
"Portal"
"CUL Collections:"
"CLIO"
"Nat'l / Int'l Archives:"
"ArchivedGRID"
Armstrong, Edwin H (Edwin Howard), 1890-1954 Portal CLIO ArchiveGRID
Burger, Warren E., 1907-1995 Portal CLIO ArchiveGRID
Bush, Vannevar, 1890-1974 Portal CLIO ArchiveGRID
Butler, Nicholas Murray, 1862-1947 Portal CLIO ArchiveGRID
College teachers Portal CLIO ArchiveGRID
Columbia University. Marcellus Hartley Research Laboratory Portal CLIO ArchiveGRID
Coudert, Frederic R (Frederic René), 1871-1955 Portal CLIO ArchiveGRID
Cravath, Swaine & Moore Portal CLIO ArchiveGRID
De Forest, Lee, 1873-1961 Portal CLIO ArchiveGRID
De Voto, Bernard, 1897-1955 Portal CLIO ArchiveGRID
Dewey, Thomas E (Thomas Edmund), 1902-1971 Portal CLIO ArchiveGRID
Donovan, William J (William Joseph), 1883-1959 Portal CLIO ArchiveGRID
Eisenhower, Dwight D (Dwight David), 1890-1969 Portal CLIO ArchiveGRID
Electrical engineers Portal CLIO ArchiveGRID
Farley, James A. (James Aloysius), 1888-1976 Portal CLIO ArchiveGRID
Fermi, Enrico, 1901-1954 Portal CLIO ArchiveGRID
Hoover, Herbert, 1874-1964 Portal CLIO ArchiveGRID
Institute of Radio Engineers Portal CLIO ArchiveGRID
Inventors Portal CLIO ArchiveGRID
Kaempffert, Waldemar, 1877-1956 Portal CLIO ArchiveGRID
La Guardia, Fiorello H (Fiorello Henry), 1882-1947 Portal CLIO ArchiveGRID
Lodge, Henry Cabot, Jr., 1902-1985 Portal CLIO ArchiveGRID
Marconi, Guglielmo, 1874-1937 Portal CLIO ArchiveGRID
McCormick, Robert R. (Robert Rutherford), 1880-1955 Portal CLIO ArchiveGRID
Murray, Thomas E (Thomas Edward), 1860-1929 Portal CLIO ArchiveGRID
Paley, William S (William Samuel), 1901-1990 Portal CLIO ArchiveGRID
Patent lawyers Portal CLIO ArchiveGRID
Patent suits Portal CLIO ArchiveGRID
Powers of attorney Portal CLIO ArchiveGRID
Pupin, Michael, 1858-1935 Portal CLIO ArchiveGRID
Radar Portal CLIO ArchiveGRID
Radio -- Law and legislation Portal CLIO ArchiveGRID
Radio -- Patents Portal CLIO ArchiveGRID
Radio -- Receivers and reception -- Research Portal CLIO ArchiveGRID
Radio -- Transmitters and transmission -- Research Portal CLIO ArchiveGRID
Radio Club of America Portal CLIO ArchiveGRID
Radio Corporation of America Portal CLIO ArchiveGRID
Radio frequency modulation -- Research Portal CLIO ArchiveGRID
Radio stations -- New Jersey -- Alpine Portal CLIO ArchiveGRID
Round, Henry J Portal CLIO ArchiveGRID
Sarnoff, David, 1891-1971 Portal CLIO ArchiveGRID
Scrapbooks Portal CLIO ArchiveGRID
Stimson, Henry L (Henry Lewis), 1867-1950 Portal CLIO ArchiveGRID
Stokowski, Leopold, 1882-1977 Portal CLIO ArchiveGRID
Sulzberger, Arthur Hays, 1891-1968 Portal CLIO ArchiveGRID
Superheterodyne receivers -- Research Portal CLIO ArchiveGRID
United States. Air Force Portal CLIO ArchiveGRID
United States. Army. American Expeditionary Forces Portal CLIO ArchiveGRID
United States. Federal Communications Commission Portal CLIO ArchiveGRID
Woodbridge, Frederick James Eugene, 1867-1940 Portal CLIO ArchiveGRID
World War, 1914-1918 -- France Portal CLIO ArchiveGRID
World War, 1939-1945 Portal CLIO ArchiveGRID
Young, Owen D., 1874-1962 Portal CLIO ArchiveGRID
Zenith Radio Corporation Portal CLIO ArchiveGRID

History / Biographical Note

Biographical Note

Edwin Howard Armstrong was born on December 18, 1890, in the Chelsea District of Manhattan. He was the first child of John and Emily (Smith) Armstrong. John worked as Vice President of the American branch of Oxford Press, while Emily, a graduate of Hunter College, taught in the New York City public schools. Prior to moving out of Manhattan, Edwin gained two younger sisters, Ethel and Edith. In 1902, the Armstrong family moved north, to 1032 Warburton Avenue, in Yonkers, New York.

In 1905, Armstrong entered high school. He already sought to emulate Marconi, the Italian inventor responsible for a system of wireless telegraphy. He began to tinker with the telegraph with companions in his neighborhood who were also taken with the invention. Many of these childhood companions would become lasting friends for the balance of Howard's life. Thomas Styles lived down the block in Yonkers; Randy Runyon was located about a mile away, and William Russell was in the adjacent town of Hastings-on-Hudson. Howard's uncle, Frank Smith, introduced him to Charles R. Underhill, an engineer and inventor for the American Telegraph Company. He furnished Armstrong with experimental apparatus, and more importantly, a constant mentor. Howard would join Underhill frequently after school for years, where they would discuss wireless phenomena.

On June 24, 1909, Armstrong graduated from high school. The following September, he entered Columbia University's Department of Electrical Engineering. Armstrong was constantly in the laboratory, conducting endless experiments. Some professors thought the young student needed discipline, he did not follow maintain records of his experiments. But several instructors defended Armstrong, fostering his need for freedom to investigate. Howard distrusted mathematics as the essential proof of phenomena of the physical world and refused to accept the findings of experts. He continued his experiments both at the Columbia lab and in his attic at home. He was determined to find a method that would strengthen the wireless signal.

While in his junior year, Armstrong came under the influence of Professor Michael I. Pupin. Pupin was one of the founders of the Columbia University Department of Electrical Engineering, and head of the Marcellus Hartley Research Laboratory. Pupin believed in rigorous scientific experiments, understanding that theory cannot replace results. A successful inventor himself, he soon took notice of Armstrong.

In 1912, Armstrong joined the Radio Club of America, which his close friends from Yonkers had all joined. The Club, originally called the Junior Wireless Club Ltd., had been organized in 1909, with Reginald A. Fessenden as the advisor. Fessenden had invented and patented the heterodyne principle in 1902. It was an amateur club that would eventually have a large impact on the development of radio and more specifically, Armstrong's career.

The Regenerative Circuit

In 1906, Lee de Forest created the "audion", an early vacuum tube, by adding a wire grid to the Edison-Fleming diode. Subsequently, in 1912, he accidentally connected the output circuit of one audion to its own input circuit and obtained a loud howling sound, which he later identified as regeneration. Instead of attempting to understand the hissing or howling sound, he tried to abolish it.

When Armstrong began experimenting with the audion, he took numerous measurements in order to ascertain how this tube functioned, eventually devising a circuit that would operate as a powerful amplifier of incoming radio waves. By the winter of 1912, he had discovered that if part of the plates output circuit was fed back to the grid in a controlled manner, the incoming signals were remarkably strengthened. In addition, he discovered that when feedback was increased sufficiently the circuit could be used as a transmitter by generating high frequency oscillations, a required element for radio communications. He mentioned his idea to instructors at Columbia University, who advised him to contact William Davis, a patent attorney who had secured patents for many of them. Lacking the necessary funds to file, his uncle advised him to prepare a sketch and have it notarized. He did just that, providing him with a record date of January 31, 1913.

Armstrong's regenerative circuit led to a nearly twenty year legal battle over patent rights. While the controversy is best known to have been between Armstrong and de Forest, there were actually two other individuals who claimed rights to this invention-- Irving Langmuir and Alexander Meissner.

In October 1913, Armstrong, along with another inventor, Irving Langmuir of General Electric, filed patent applications disclosing the principle of radio-frequency regeneration and claimed the arrangement of tuned radio frequency circuits, which is characteristic of the invention. Armstrong's patent was issued on October 6, 1914. This patent disclosed the circuit arrangement in its non-oscillating stage, that of an improved receiver of wireless signals. By now his patent attorney, William Davis, recommended he incorporate the transmitting ability into the same patent. Armstrong refused and the regenerative circuits oscillating capacity was disclosed in a separate patent application, filed December 18, 1913.

A German inventor, Alexander Meissner, filed a United States Patent application on the regenerative circuit on March 16, 1914. Four days later, Lee de Forest filed an application for his "ultra-audion". In De Forest's original claims, he considered his device a detector, not an amplifier (transmitter).

In November 1913, de Forest delivered a paper to the Institute of Radio Engineers (IRE) on the subject of "The audion, detector and amplifier". He gave an explanation of the action of the audion with regard to circuit change. He made no mention of feedback and this presentation served to reinforce the fact that he did not understand the audion qualities or how it functioned. It was not until after Armstrong's paper "Some Recent Developments in the audion Receiver", was delivered to the IRE in New York on March 3, 1915, and published in September, that de Forest changed his patent disclosure. De Forest filed for patent with oscillating features in September 1915 and was later issued a second patent, claiming a date of invention prior to March 1913, disclosing specifics of regeneration.

This was the patent that the United States Supreme Court would, on May 21, 1934, decide to sustain in favor of de Forest. The decision of the Supreme Court was the thirteenth pronouncement by a judicial or administrative tribunal with regard to the question of priority between Armstrong and de Forest. These two men fought each other in the courts both as individuals and through the corporations (Westinghouse Electric and American Telephone and Telegraph, respectively) that had purchased rights to their patents. Prior to the Supreme Court decision, six of the tribunals decided in favor of Armstrong and six had decided in de Forest's favor. The scientific community, especially the engineering community, believed that in favoring de Forest's claim the Court had made a large mistake, one based on the justices' lack of technical training and understanding.

In 1934, the IRE held a convention in Philadelphia. Armstrong indicated that he would like to return the Medal of Honor he had received in 1917 for his discovery of regeneration. He believed that since the United States Supreme Court had decided against him, it was his duty to return what may have been awarded to him in error. The IRE President, along with the Board of Directors unanimously agreed that Armstrong should be reaffirmed as the recipient of the 1917 Medal of Honor, so instead of allowing Armstrong to return his Medal, they restated the award.

The Super-heterodyne

When the United States entered World War I, Armstrong enlisted in the Signal Corps. In 1917 he was posted in France and placed in charge of the Radio Group of the Research Section of the Division of Research and Inspection. This Division had been created in order to examine any existing equipment manufactured by the Europeans for the American Expeditionary Forces. The Major set off to France but en route he was delayed in England due to heavy fog. While there, he ventured to London, stopping by the Marconi offices where he met Henry J. Round.

Round was an engineer with Marconi who, at the time, was in charge of the Admiralty's wireless direction-finding stations. It was here that Armstrong was introduced to Round's short-wave equipment. Round had created these amplifiers by designing his own vacuum tube (V24). These tubes were not of military use to the French or the Americans, but they captured Armstrong's attention and he concluded that this was a problem that required further research.

Armstrong had studied heterodyne circuitry for quite a while and understood it well. This meeting with Round pushed him further and he continued to examine the problem of receiving weak high frequency signals. In 1918, Harry W. Houck, a sergeant in the United States Army, was sent to Paris to assist Armstrong with his work. They worked together to solve the problem of detecting high frequency waves and converting them to a lower frequency range audible to the human ear. After observing a bombing raid in Paris, Armstrong was inspired to improve the methods of locating aircraft. He used the heterodyne principle to bring short-wave frequencies down to the range of his long-wave amplifier. He worked out the necessary experiments needed to prove his forthcoming invention, writing down the proposed method in June 1918 with Major Buckley signing off as witness.

Following his proposed methodology to Major Buckley, Armstrong needed assistance to stage these experiments and create the necessary apparatus. With war work taking precedence and his fellow officers tied up in other pressing projects, his work was delayed. The first model was not ready until November. Armstrong first applied for patent in France in December 1918 and for United States patent in February 1919.

In early 1919, Armstrong was raised to permanent rank of Major. He also received the Chevalier de la Legion d'honneur from General Ferrie, Head of the French Military Communications Division. When Armstrong returned from the war he presented his paper, "A New System of Short Wave Amplification," to the Institute of Radio Engineers in December of 1919, delineating his new receiver.

In 1920, Westinghouse purchased Armstrong's regeneration and superheterodyne patents. Also, around this time, American Telephone and Telegraph (AT & T) purchased Lucien Levy's patent for essentially the same invention. Levy's patent referred to a different use of the technology than did Armstrong's, resulting in the United States Patent Office not catching the conflict. Someone eventually noticed this apparent conflict and priority needed to be resolved.

The Court of Appeals in the District of Columbia ruled in Levy's favor and his patent was issued on November 5, 1929, with a priority date of August 4, 1917 (he had filed 6 months prior to Armstrong). While Levy, by law, is considered the inventor of the superheterodyne method, Armstrong is recognized as bringing about its commercialization through the single tuning knob superheterodyne receiver.

The Super-regenerative Circuit

In 1922, Armstrong devised the super-regenerative circuit, a detector with much higher sensitivity. In June, RCA and Armstrong made a deal; Armstrong received two hundred thousand dollars in cash and sixty thousand shares of stock for his super-regeneration invention. It was around this time that he met Marion MacInnis who worked as David Sarnoff's secretary at RCA. In December of 1923, they married at her parents' home in Merrimac. Radio broadcasting was now becoming very popular, what had begun as one station in 1920 had grown to over 500 stations.

Wide-band Frequency Modulation System

For many years Armstrong and Pupin had been investigating how to eliminate the problem of natural and man-made noise that plagued AM radio, with no success. At the time, the method accepted of reducing noise was in narrowing the band of frequencies used to transmit radio waves. The conventional theories taught that a narrower band of frequencies utilized for broadcasting would allow less noise into the signal. In 1931, Armstrong took the opposite approach and pursued wideband frequency modulation as a remedy for noise.

On December 26, 1933 about 18 months after he began experimenting with wide-band FM, Armstrong had secured patent number 1,914,069, titled Radio Signaling. In addition, he secured three other patents; patent number 1,941,068 titled Radio Signaling, patent number 1,941,066 titled Radio Signaling System, and the last issued in 1933, patent number 1,941,067 titled Radio Broadcasting and Receiving.

Armstrong first approached RCA, offering them first option on his new invention. In the spring of 1934 he set up his system in the Empire State building and for the next few years RCA engineers, alongside Armstrong, tested FM. During the summer of 1934, tests were conducted between the Empire State building and Westhampton Beach, Long Island. The results were excellent, but proof was needed from a site located at a further distance. The receiver was moved to the Haddonfield, New Jersey home of Harry Sadenwater, an engineer at RCA. This experiment established that even with longer range, the signals could be heard loud and clear.

Alpine, New Jersey

Still, RCA would not buy Armstrong's frequency modulation system. So he attempted to obtain permission from the Federal Communications Commission to build a high powered FM station in 1935. First, the FCC denied his request, but he was finally able to secure an experimental license after he hired an attorney to help him. Armstrong began constructing his station in Alpine, New Jersey. In 1936, he poured a large sum of money into it, selling some of his RCA stock to do so. There were no FM broadcast stations in existence (with the exception of W2AG, his longtime childhood friend Randy Runyon's station, operating out of Yonkers, New York), hence all the apparatus would have to be built from scratch. Armstrong oversaw the project from top to bottom.

Station W2XMN went on the air with a regular operating schedule in July 1939. Immediately following, various other FM stations went on the air, all under experimental licenses. These stations now wanted to go commercial and thus were applying to the FCC to do so. Finally, at the end of 1939, the FCC began to study the commercial possibilities of FM broadcast.

The Federal Communications Commission

In January 1941, the FCC authorized the commercial development of FM. When the United States entered World War II, there were under one hundred commercial FM stations authorized, but applications were rolling in. The FCC froze the civilian electronics industry; only FM stations already broadcasting could continue. It became clear to the FCC that they would need to establish standards for the post-war electronics industry. A new allocation scheme for the use of frequencies above 30 MHz would become necessary.

In November 1942, at a joint meeting of the IRE and the electrical engineering department of the Radio Manufacturers Association (RMA), FCC Commissioner James L. Fly encouraged the industry to establish an organization that could provide the FCC with engineering advice for the development of frequency allocation and system standards. Fly's proposal resulted in the establishment of the Radio Technical Planning Board (RTPB), set up in September 1943.

The RTPB was divided into 13 panels, each responsible for recommendations pertaining to various electronic industry standards. FM broadcasting, including frequency allocations and standards was the responsibility of Panel 5.

Various hearings were held where a multitude of experts in the field testified. Generally accepted was that the majority of experts, both on the applicable panel, or consulted, agreed that the FM frequency allocations should remain where they were in the 40-50 MHz vicinity. A few experts felt that there was evidence of atmospheric disturbances that could cause interference in the frequency band that was currently being used. The FCC then began to investigate a possible move for FM frequency allocation, to the 100 MHz vicinity.

In June 1945, after multiple hearings and evidence from an engineer employed by the FCC, Kenneth Norton, the FCC ordered FM stations to broadcast in the 88-106 MHz band. This decision rendered the old FM system, in use since January 1941, obsolete. Engineers, manufacturers and broadcasters had to begin again from scratch.

A few years prior to the FCC decision to shift frequency allocations, RCA had begun work on FM. Negotiations between Armstrong and RCA for use of his FM System patents had never come to fruition. An engineer employed with RCA, Stuart Seeley, had invented the "radio-detector" for RCA, who claimed that Armstrong's patents were not used. In fact, the Seeley invention did appropriate two of Armstrong's inventions, the limiter and detector. RCA was licensing the rights to what it claimed was its FM invention, to other manufacturers, some of which were Emerson, Motorola and Philco. With the shift in frequency band, RCA was back on a level playing field.

Radar and FM Multiplexing

Armstrong set out to prove the FCC wrong so he leased a cottage on Westhampton Beach, Long Island and sent John Bose to reside there. Signals were sent from Alpine and the documentation of FM propagation was extensive. He produced incontrovertible evidence that FM could work well in a lower frequency band. At the same time, he also conducted experiments to prove that FM transmission was not limited to short distances. He transmitted from Alpine, high powered FM signals that bounced off the ionosphere and was received by a mobile receiver in Alabama. The pentagon and Bell Labs recognized the importance of this discovery and continued development with Massachusetts Institute of Technology (MIT), REL and Bell Labs. The result was early warning radar.

At the start of the war, Armstrong offered the United States government use of his FM patents royalty free. Unfortunately, his bills for the Columbia Lab and Alpine station were building so his attorney, Al McCormack, encouraged Armstrong to accept government contract work. At the time, Armstrong was investigating long-range radar. As a result of incoming work, Armstrong hired another assistant, Robert Hull, a recent graduate of Columbia University, to join his investigations of continuous wave radar.

He had adapted frequency modulation to radar to extend the range of detection far beyond conventional methods. His research provided the basis for long-range radar in use today. Armstrong had still been working on radar and in January 1946, his radar system was tested at the US Army Signal Corps lab in Fort Evans, located in Belmar, New Jersey. Army engineers bounced the first radio signal off the moon and back to earth. His radar system proved that FM waves could penetrate the ionosphere.

In March 1953, a new invention is announced, FM multiplexing. Armstrong had developed the invention with John Bose, which facilitates a single FM station to transmit simultaneously, two or three different signals over the same FM wave. This invention made stereo broadcasting possible.

Wide-band Frequency Modulation System--Patent Infringement

On July 22, 1948, Armstrong's attorney, McCormack, filed suit against RCA and NBC in Wilmington, Delaware. The main charge being infringement of his five basic FM patents. In addition, the suit also charged that RCA deliberately set out to retard the production of FM. McCormack was assisted by Dana Raymond (who had worked at Cravath, Swaine & Moore), and the attorney who had filed all of Armstrong's patents since super-regeneration, Albert Nolte, assisted as well.

In March 1953, a new invention was announced, FM multiplexing. Armstrong had developed the invention jointly with John Bose, which facilitates a single FM station to transmit simultaneously, two or three different signals over the same FM wave. This invention made stereo broadcast possible.

The litigation continued and Armstrong began to become not only financially drained, but physically drained as well. At the end of the fifth year of litigation, 1954, Armstrong took his own life.

His widow Marion would continue the battle against RCA and twenty other companies who had infringed Armstrong's FM patents. It would not be until 1968, when the final pending suit and ruling was made in Armstrong's favor. All twenty-one companies had either settled or were ruled infringers by the courts.

Honors and Awards:

Degree of Doctor of Science Columbia University, 1929

Muhlenberg, 1941

L'Universite Laval, 1948

Medal of Honor, Institute of Radio Engineers, 1917

Chevalier de la Legion d'Honneur, 1919

Armstrong Medal, established by The Radio Club of America, 1935

Egleston Medal, Columbia University, 1939

Holley Medal, American Society of Mechanical Engineers, 1940

National Modern Pioneer Award, National Association of Manufacturers, on the 150th Anniversary of the American Patent System, 1940

Medal of Class on 1989--School of Mines, Columbia University, 1941

Franklin Medal, the Franklin Institute, 1941

John Scott Medal, Awarded by the Board of Directors of City Trusts, City of Philadelphia, 1942

Edison Medal, American Institute of Electrical Engineers, 1942

Medal for Merit (United States) with Presidential Citation, 1947

Radio Club Armstrong Medal along with Ernest V. Amy, George E. Burghard, Milton Cronkhite, Paul F. Godley, John F. Grinan, and Walter P. Inman, for the first shortwave transoceanic signals (1BCG), 1950

Washington Award, Western Society of Engineers, 1951

Lion Award, Columbia University Alumni Club of New Jersey, 1953

Honorary Membership, Institute of Radio Engineers, Australia

Honorary Membership, Franklin Institute

Honorary Membership, American Institute of Electrical Engineers

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Series I: Correspondence, 1910-1975

This series is divided into the following five types of correspondence: general, catalogued, early, laboratory and carbon correspondence. The catalogued correspondence is alphabetical by correspondent. The remainder of the series is chronological with the general containing schematic drawings, notes and photographs. Diagrams and notes on the regenerative circuit and superheterodyne can be found along with correspondence with Armstrong's sisters, Ethel and Edith, as well as his mother, Emily, and Charles Underhill, H.J. Round, C.V. Logwood and Irving Langmuir. The first box within this series contains the contents of a binder entitled "Instructions for Filing." These materials appear to indicate the manner in which Armstrong originally titled and filed various materials within his office and laboratory.



Box 260 Folder 1 to 3 Filing System for E. H. Armstrong Originally Contained in a Binder--Instructions for Filing Correspondence, Clippings, Photostats, Publications, Lab Files, and Index to FCC Proceedings,, undated, (3 Folders)


Catalogued



Box 1 Folder 1 Burger, Warren Earl, 1953


Box 1 Folder 1 Bush, Vannevar, 1951-1952


Box 1 Folder 1 Butler, Nicholas Murray, 1935-1944


Box 1 Folder 1 Coudert, Frederic Rene, Jr., 1946-1949


Box 1 Folder 1 De Forest, Lee, 1926, 1940, 1926, 1940


Box 1 Folder 1 De Voto, Bernard Augustine, 1951


Box 1 Folder 1 Dewey, Thomas Edmund, 1940-1950


Box 1 Folder 1 Donovan, William Joseph, 1953


Box 1 Folder 1 Eisenhower, Dwight David, 1948-1951


Box 1 Folder 1 Espenschied, Lloyd, 1952


Box 1 Folder 2 Farley, James A., 1948


Box 1 Folder 2 Fermi, Enrico, 1940


Box 1 Folder 2 Ferrie, Gustave Auguste, 1922


Box 1 Folder 2 Fuller, Alvan Tufts, 1952


Box 1 Folder 2 Hoover, Herbert Clark, 1950-1951


Box 1 Folder 2 Kaempffert, Waldemar Bernhard, 1930-1953


Box 1 Folder 2 LaGuardia, Fiorello H., 1947


Box 1 Folder 2 Lodge, Henry Cabot, Jr., 1953


Box 1 Folder 2 McCormick, Robert R., 1946


Box 1 Folder 2 Marconi, Guglielmo, 1914


Box 1 Folder 2 Maxim, Hiram Percy, 1916


Box 1 Folder 2 Murray, Thomas Edward, 1950-1953


Box 1 Folder 2 Northrop, John Howard, 1946


Box 1 Folder 2 Paley, William S., 1948


Box 1 Folder 2 Pupin, Michael Idvorsky, 1934


Box 1 Folder 3 Rockefeller, William Goodsell, 1922


Box 1 Folder 3 Round, H.J., 1936-1953


Box 1 Folder 3 Sarnoff, David, 1914-1950


Box 1 Folder 4 Stimson, Henry L., 1941


Box 1 Folder 4 Stokowski, Leopold, 1940-1946


Box 1 Folder 4 Sulzberger, Arthur Hays, 1943-1953


Box 1 Folder 4 Tyson, Levering, 1940


Box 1 Folder 4 Weeks, Raymond, 1923


Box 1 Folder 4 Woodbridge, Frederick J. E., 1922


Box 1 Folder 4 Young, Owen D., 1925-1950


General


Box 1 Folder 5-8 1910-1915, (4 Folders)

Correspondents Include Charles Underhill, C.V. Logwood, Irving Lanmuir, Albert Hull. Alfred Goldsmith of the IRE, William Davis of Pennie, Davis and Goldborough, and L.F.H. Betts of Sheffield, Bentley and Betts--Armstrong's Early Audion Drawings and "Notes on Distribution of Resistance.."



Box 2 Folder 1-8 1916-1922, (8 Folders)

Correspondents Include Armstrong's Mother and Sister's Ethel and Edith (Crick), William Davis, Alfred Goldsmith, H.J. Round, Herman Burgi--Includes Invoices from Pennie, Davis and Marvin--Radio Club of America Meeting Minutes--Armstrong Notes and Drawings--Paper Titled "A Method of Receiving Short Continuous Waves" Witnessed by Major O.E. Buckley--Cables of Transmittal--Atlantic Tests--Patent Litigation--World Championship Boxing Contest via Radio Telephone--Requests for Information Regarding Armstrong's Superregenerative Receiver--An American Expeditionary Forces Identity Card (photographs)



Box 3 Folder 1-6 1922-1929, (6 Folders)

General Interest and Requests Regarding Armstrong's Superrengenerative System and Patents (French, German)



Box 4 Folder 1-8 1913-1954, (8 Folders)

Paper on Modulation, Graphs and Handwritten Notes-- "The Audion Oscillator" by Michael Pupin--Correspondence Regarding United States Supreme Court Ruling in 1934--Awards, Citations and Medals--Alpine Radio Station--Freed Radio Corporation, Comparisons of Frequency and Amplitude Modulation--Correspondence to Editors of Various Newspapers--Foreign Correspondents


Box 4 Folder 9 1924-1930

Regarding the Superheterodyne



Box 5 Folder 1-7 1931-1954, (7 Folders)

Last Will and Testament of E. H. Armstrong dated April 28, 1942--Radio Manufacturers Association--Correspondence with American Telephone and Telegraph, Blueprint of Horizontal Twin Rhombic Transmitting Antenna (Photographs)



Box 6 Folder 1-11 1941-1954, (11 Folders)

Radio Stations and Broadcasting Companies, Regarding Frequency Modulation, Includes Notes on Schenectady Receiver; Associated Musicians of Greater New York



Box 7 Folder 1-8 1948-1950, (8 Folders)

American Broadcasting Company--Radio Stations and Broadcasting Companies, Regarding Frequency Modulation



Box 8 Folder 1-11 1950-1955, (11 Folders)

Correspondents include John M. Conly of Atlantic Monthly and With Regard to Armstrong's Article in Midwestern Engineer and the 1951 Washington Award--Radio Stations and Broadcasting Companies--Popular Mechanics Fiftieth Anniversary Hall of Fame--American Institute of Electrical Engineers, Includes Armstrong's Application and Election to Membership--Marion Armstrong to H.J. Round--Federal Communications Commission



Box 9 Folder 1-3 1953-1954, (3 Folders)

Includes Letter From Reverend Thorton Penfield to Ethel Hammond Regarding Edwin H. Armstrong's Death


Box 9 Folder 4-5 Armstrong Memorial Research Foundation, 1954-1971, (2 Folders)


Laboratory


Box 9 Folder 6-9 1929-1936--Graphs, Handbooks, Purchase Receipts, Instruction Books on Assembly from General Radio Co.--Meeting Minutes of the RMA Section of the Joint RMA-SAE Committee on Radio Interefernce--Institute of Radio Engineers--Application for Proposed Location of Transmitter Tower--Department of Police, New Jersey Regarding Two Way Communication, (4 Folders)



Box 10 Folder 1-9 1936-1939--Institute of Radio Engineers, Phildelphia Section "Frequency Modulation" by E.H. Armstrong--Correspondence From Experimenters and Inventors in Radio--Schematic Diagram for Crystal Oscillator--Regarding Ultra Short Waves (U.K.W), Paper on "Static Elimination" for Transmittal, Calcutta--Federal Communications Commission; RCA; Columbia Broadcasting System--Alpine Tower, (9 Folders)



Box 11 Folder 1-8 1939-1943, (8 Folders)



Box 12 Folder 1-7 1943-1944, (7 Folders)



Box 13 Folder 1-4 1945-1946, (4 Folders)



Box 14 Folder 1-2 1947, (2 Folders)


Carbon Copies


Box 14 Folder 3-6 1940-1942, (4 Folders)



Box 15 Folder 1-6 1947-1948, (6 Folders)



Box 16 Folder 1-6 1948-1949, (6 Folders)



Box 17 Folder 1-6 1950-1951, (6 Folders)



Box 18 Folder 1-6 1951-1953, (6 Folders)



Box 19 Folder 1-2 1953, (2 Folders)


Box 19 Folder 3 To Edith Beardsley, 1975

Series II: Writings of EHA, 1913-1953

These records are organized chronologically. Many are standard publications written by E.H. Armstrong, some are annotated. There are drafts with annotations which are typically addresses or speeches. Also included are newspaper articles, statements and testimony.



Box 20 Folder 1 Notorized Feedback Circuit Diagram--Photostat, 1913 January


Box 20 Folder 2 Electrical World Diagram of Operating Features of the Audion,, 1914 December 12


Box 20 Folder 3 Diagram of Reactance Tube, 1915


Box 20 Folder 4 The Audion as a Detector Amplifier, 1915 (German), 1915


Box 20 Folder 5 "Some Recent Developments In the Audion Receiver,", 1915 March 3


Box 20 Folder 6 "Study of Heterodyne Amplification By the Electron Relay," Typed Publication with Corrections, [1916]


Box 20 Folder 7 "A Study of Heterodyne Amplification By the Electron Relay,", 1916 October


Box 20 Folder 8 "Operating Features of the Audion,", 1917 August 17


Box 20 Folder 9 "A New System of Short Wave Amplification, 1921


Box 20 Folder 10 "The Super-Heterodyne: Its Origin, Development, and Some Recent Improvements,", 1921 February


Box 20 Folder 11 "Some Recent Developments of Regenerative Circuits,", 1922 June


Box 20 Folder 12 "Method of Reducing the Effect of Atmospheric Disturbances,", 1927 August 27


Box 20 Folder 13 New York Herald Tribune--"Major Armstrong Gives Views on Audion History,", 1930 December 21


Box 20 Folder 14 New York Times--"Tube That Gave Radio A Magic Touch,", 1931 February 8


Box 20 Folder 15 Disclosure of Television System, 1933 May 8


Box 20 Folder 16 Westhampton Beach Log, 1934 June 9


Box 20 Folder 17 Dutch Patent Application, 1934-1935


Box 20 Folder 18 Predication Made Before Radio Club of America, 1935-1936


Box 20 Folder 19 New York Times Prediction," , 1936 January 5


Box 20 Folder 20 "A Method of Reducing Disturbances In Radio Signaling By a System of Frequency Modulation"--Annotated,, 1936 May


Box 20 Folder 21 Federal Communications Commission (FCC)--Testimony Before the, Docket No. 3929 1936 June 17, 3929, 1936 June 17


Box 20 Folder 22 Improved System For Reinforcing Signal with Respect to Ignition Noise--Diagram,, 1937


Box 20 Folder 23 New York Times Armstrong's Challenge Regarding Orin E. Dunlap's Article on W2XMN,, 1939 January 1


Box 20 Folder 24 FCC, Testimony Before, Docket No. 5805--Includes Excerpts, 1940 April 22


Box 20 Folder 25 Radio Today "Major Armstrong Clears Up Point in FM-Tele Issue," Letter to the Editor,, 1940 May


Box 20 Folder 26 Electrical Engineering "Evolution of Frequency Modulation"--Inscribed,, 1940 December


Box 20 Folder 27 "Frequency Modulation and Its Future Uses,", 1941


Box 20 Folder 28 Advertisement--"An Important Message to the Radio Trade Regarding FM Receivers,", 1941


Box 20 Folder 29 Offer to the War Department of Free Use of FM Patents--Clippings and Answers From Secretary's of War and Navy,, 1941


Box 20 Folder 30 Annals of the American Academy of Political and Social Science "Frequency Modulation and Its Future Uses," 1941 January


Box 20 Folder 31 "The New Radio Freedom"--Paper Read at the Franklin Institute on Receipt of Medal,, 1941 May 21


Box 20 Folder 32 "Vagaries and Elusiveness of Invention"--Edison Medal Acceptance Speech,, 1943 January 27


Box 20 Folder 33 Broadcasting "Like Story of the Superheterodyne, A Set for Every Purse,", 1943 April 26


Box 20 Folder 34 Scientific Monthly "Nikola Tesla,", 1943 April


Box 20 Folder 35 FM Broadcasters, Inc--Address to the Fifth Annual Meeting at the Commodore Hotel,, 1944 January 26


Box 20 Folder 36 The Senate Interstate Commerce Committee, Testimony Before--"The History of Frequency Modulation"--As Printed in FM Radio-Electronics Engineering 1944 March


Box 20 Folder 37 American Newspaper Publishers Association--"The Story of FM Broadcasting,", 1944 April 27


Box 20 Folder 38 FM and Television "The Original Disclosure of FM, Part 1,", 1944 June


Box 20 Folder 39 Annual Meetings of the American Society of Mechanical Engineers, Address Before the--"Ingenuity,", 1944 July


Box 20 Folder 40 FM Radio "Electronics Mathematical Theory vs. Physical Concept,", 1944 August


Box 20 Folder 41 FM and Television "High Points of FM History,", 1944 August


Box 20 Folder 42 National Association of Broadcasters, Executive War Conference, Address to--"The Postwar Future of Broadcasting,", 1944 August 31


Box 20 Folder 43 Memorandum Written "In Response to the Commission Request for Added Details and Reasonsfor My Protest of the Commission's Action..."--In Regards to Frequency Shifts--Typed Paper Regarding Ancient Propagation Discoveries--Typed Speech Prepared for IRE To Return Medal of Honor, With Corrections, 1945, undated, 1945, undated


Box 20 Folder 44 FCC Briefs--Docket No. 6651 1945 February 21, April 18, 25, 6651, 1945 February


Box 20 Folder 45 New York Herald Tribune "Major Armstrong's Proposal" Regarding FM Inventor Offers Profits To End Dispute,", 1945 March


Box 20 Folder 46 FCC, Testimony Before the--Docket No. 6768 1945 August 1, 6768, 1945 August 1


Box 20 Folder 47 Broadcasting "Armstrong Attacks FCC Data on FM,", 1945 November 19


Box 20 Folder 48 New York Times "FM Still Open To Study," Response to Jack Gould's "FM Growing Pains,", 1945 November 23


Box 20 Folder 49 Coverage and Correspondence Regarding FM Briefs to FCC, 1946-1948


Box 20 Folder 50 FCC, Testimony Before the--Docket 6651 1954 January 18, 6651, 1954 January 18


Box 20 Folder 51 Army Life "Inventor Lauds Army Training,", 1946 February


Box 20 Folder 52 Heinl News Service--"Major Armstrong Takes Exception to Mr. Jett's FM Statement,", 1946 February 6


Box 20 Folder 53 Radio Manufacturers Association of Canada, Address Before the, At the Chateau Frontenac, Quebec City, PQ,, 1946 May 31


Box 20 Folder 54 New York Times "FM, Production Underway Despite Delays,", 1946 June 19


Box 20 Folder 55 Broadcasting "Armstrong Challenges Shouse on FM,", 1946 July 1


Box 20 Folder 56 Tide "In Support of FM Radio,"--Includes Correspondence,, 1946 September 6


Box 20 Folder 57 Broadcasting "Armstrong Questions Cosgrove's Reason For August Decline in FM Set Output,", 1946 September 28


Box 20 Folder 58 Broadcasting "Armstrong Says Setmakers Behind Broadcasters on FM,", 1946 October 21


Box 20 Folder 59 Printer's Ink "Clarification From Major Armstrong," Regarding "NAB's Sessions Run Gamut of Radio Problems as Trammell Urges Higher,", 1946 November 29


Box 20 Folder 60 FCC--Docket No. 8487--Briefs, Statements and Correspondence, 1947


Box 20 Folder 61 Advertisement--"What's All This Talk About FM?,", 1947 January-February


Box 20 Folder 62 Sub-Committee of the Senate Interstate and Foreign Commerce Committee, Testimony Before--S. 1333 1947 June 25, 1333, 1947 June 25


Box 20 Folder 63 International Communications Conference--Address to in Atlantic City, 1947 August 6


Box 20 Folder 64 NAB Address--"Some Ancient History of the Radio Art," in Atlantic City, 1947 September 17


Box 20 Folder 65 Frequency Modulation Association, Radio Address to, in Chicago, Illinois,, 1947 October 15


Box 20 Folder 66 Laval University Speech--Includes Original Notes, 1948


Box 20 Folder 67 RCA's Attempt to Hamper FM Development--Testimony Regarding, 1948 May 1


Box 20 Folder 68 "Radio Broadcasting-1922-Looking Backward"--Published in Radio Craft 1948 June


Box 20 Folder 69 Articles Regarding Controversy With Jolliffe on Discovery of Long Distance, Short Wave Propagation FM and Telephone,, 1948 July-September


Box 20 Folder 70 Electronics Magazine Remarks on Jim Day's "Serrasoid FM Modulator,", 1948 August 11


Box 20 Folder 71 "A Study of the Operating Characteristics of the Radio Detector and Its Place In Radio History"--Paper Read Before the Radio Club of America, Inc.--Includes Correspondence,, 1948 November 19


Box 20 Folder 72 Statement to Infringers of FM Patents, 1948 December 15


Box 20 Folder 73 Sponsor Magazine FM Discussion, 1949 June 20


Box 20 Folder 74 "FM Broadcasting: Past, Present and Future"--Paid Statement in the Radio and Televison Retailing 1949 August


Box 20 Folder 75 Broadcasting "Questions FM to Cuba,", 1949 November


Box 20 Folder 76 FCC--Docket No. 9501--Memoranda For Amendment of Section 3.261 Governing Hours of Operation of FM Broadcast Stations,, 1949 December


Box 20 Folder 77 New York Times "Radio's Wave Band,", 1950 March 18


Box 20 Folder 78 Advertisement--"The Position of FM-1950," Radio and Television Retailing 1950 July


Box 20 Folder 79 Radio Daily "Claims FM First,", 1950 September 14


Box 20 Folder 80 Electronics Magazine "Backtalk,", 1950 October


Box 20 Folder 81 Proceedings of the Radio Club of America "The Short Story of the First Trans-Atlantic Short Wave Message,", 1950 October


Box 20 Folder 82-83 Marconi Review "Wrong Roads and Missed Chances-Some Ancient Radio History"--Address for Receipt of the Washington Award,, 1951 March, (2 Folders)


Box 20 Folder 84 New York Herald Tribune Radio Coverage of the United Nations, 1951 March 7, 24, 1951 March, (2 Folders)


Box 20 Folder 85 New York Times "Diplomacy on TV"--Includes Correspondence,, 1951 August 30


Box 20 Folder 86 US Naval Institute Proceedings "Wireless in Warfare"--Includes Correspondence,, 1952 January


Box 20 Folder 87 Letter to the New York Times Hearing in the Journal of the Patent Office Society Regarding Defining Inventions, 1953


Box 20 Folder 88 Columbia Alumni News "Just A Few Tons of Ice...,", 1953 March


Box 20 Folder 89-90 Subcommittee of House Judiciary Committee, Testimony Before--H.R. 3534 1953 June 9-10, 3534, 1953 June 9-10, (2 Folders)


Box 20 Folder 91 Speech--"The Spirit of Discovery"--An Appreciation of the Work of Marconi, AIEE Convention--Includes Correspondence and Photographs,, 1953 June 15


Box 20 Folder 92 New York Times "Defining Inventions"--Includes Correspondence,, 1953 August 30


Box 20 Folder 93 News Release on System of Multiplex Transmission, 1953 March 17


Box 20 Folder 94 "Some Recent Developments in the Multiplexed Transmission of Frequency Modulated Broadcast Signals"--With John H. Bose,, 1953


Box 20 Folder 95 Discussion of Allen Paper, undated


Box 20 Folder 96 Draft Material for FM Paper With Handwritten Notes, Drawings and Diagrams--Includes Notes on Mentor Michael I. Pupin,, undated

Series III: Clippings, 1912-1954

Armstrong maintained clipping files on a variety of topics directly relating to his work. These materials appear to be organized as Armstrong left them. With the exception of the first box, the series is organized chronologically.



Box 21 Folder 1 General, 1941-1952


Box 21 Folder 2 Old Clippings of Possible Interest, 1935-1940


Box 21 Folder 3 Television, 1935-1939


Box 21 Folder 4 Multiplex System, 1939-1953 (photographs), 1939-1953


Box 21 Folder 5 Television, 1940-1945


Box 21 Folder 6 Television Advertisements, 1947-1950


Box 21 Folder 7 Foreign, 1950-1952


Box 21 Folder 8 Inventions, 1953


Box 21 Folder 9-10 UHF Television--Misleading Propaganda, circa, 1912-1934, (2 Folders)


Box 21 Folder 11 Armstrong Honeymoon Ad Radio on Palm Beach--Aeolian Hall Tower, 1923-1924


Box 21 Folder 12-13 General, 1931-1940, (2 Folders)


Box 21 Folder 14 Early FM Articles, 1935-1940


Box 21 Folder 15-16 RCA, 1940-1949, (2 Folders)


Box 21 Folder 17 Political, 1952-1953


Box 21 Folder 18 Allocations--Clippings for Lab File, 1946-1947


Box 21 Folder 19-20 General, 1934, (2 Folders)


Box 21 Folder 21-23 FCC Hearing and Controversy Over Reallocation, 1944-1946, (3 Folders)


Box 21 Folder 24 Extra Copies of Photostats, 1945



Box 22 Folder 1-9 General, 1921-1928, (9 Folders)


Box 22 Folder 10 Magazine and Press Reports Regarding FM, 1935-1936


Box 22 Folder 11-16 General, 1938-1939, (6 Folders)


Box 22 Folder 17 Special Press Clippings Regarding Bridgeport Demonstrations, 1939


Box 22 Folder 18 Dunlap's Articles in New York Times, 1940


Box 22 Folder 19 FCC Hearing--FM and Television, Status of Radio, 1940


Box 22 Folder 20 Social Notes, 1940


Box 22 Folder 21 Doubting Comments and Hostile Comments, 1940


Box 22 Folder 22-26 General, 1940 January-March, (5 Folders)



Box 23 Folder 1-17 General, 1940 March-1941 February, (17 Folders)



Box 24 Folder 1 Hostile and Doubting Comments, 1941


Box 24 Folder 2 Carter's "Static is Good Enough For Us,", 1941


Box 24 Folder 3-14 General, 1941 March-December, (12 Folders)


Box 24 Folder 15 Dubious Comments, 1942


Box 24 Folder 16-23 General, 1942 January-March , 1943, 1942 January-March, 1943, (8 Folders)



Box 25 Folder 1 General, 1944 January-May


Box 25 Folder 2 Dubious Comments, 1944


Box 25 Folder 3-15 General, 1944 May-1945 December, (13 Folders)


Box 25 Folder 16 FCC Hearing and Controversy Regarding High and Low Bands, 1945-1946


Box 25 Folder 17 General, 1946


Box 25 Folder 18 FCC Frequency Allocation Decision, Controversy, 1946


Box 25 Folder 19 FM Delay, 1946


Box 25 Folder 20 Freedom of Speech, 1946


Box 25 Folder 21 Foreign, 1946


Box 25 Folder 22 Unique and General, 1946


Box 25 Folder 23 Petrillo and Union, 1946


Box 25 Folder 24 Programming, 1946


Box 25 Folder 25 Political, 1946


Box 25 Folder 26 Retailing, 1946


Box 25 Folder 27 Technical, 1946


Box 25 Folder 28-29 Television, 1946, (2 Folders)



Box 26 Folder 1 Major Armstrong--Sketches and Speeches, 1947


Box 26 Folder 2 Other Personalities, 1947


Box 26 Folder 3 General Information Articles, 1947


Box 26 Folder 4 FCC Denny's Prediction, 1947 January


Box 26 Folder 5 Armstrong's Speech at Atlantic City--Accuses RCA of Retarding FM, 1947 September


Box 26 Folder 6 Petrillo and Union, 1947


Box 26 Folder 7 FCC and Senate Interstate Commerce Committee, 1947


Box 26 Folder 8 Delaying FM, 1947


Box 26 Folder 9 Freedom of Speech, 1947


Box 26 Folder 10 Hearing on Allocation of 44-50 Mc Band, 1947


Box 26 Folder 11 Retailing and Production, 1947


Box 26 Folder 12 Expansion and Predictions, 1947


Box 26 Folder 13 Promotion, 1947


Box 26 Folder 14 FM Stations, 1947


Box 26 Folder 15 Relaying and FM Networks, 1947


Box 26 Folder 16 Advertisements, 1947


Box 26 Folder 17 Television, 1947


Box 26 Folder 18 Programming, 1947


Box 26 Folder 19 Broadcasting Code, 1947


Box 26 Folder 20 FM Association, 1947


Box 26 Folder 21 National Association of Broadcasters, 1947


Box 26 Folder 22 Other Organizations, 1947


Box 26 Folder 23 Technical Developments, 1947


Box 26 Folder 24 Equipment, Description of, 1947


Box 26 Folder 25 Educational FM, 1947


Box 26 Folder 26 Other FM Uses, 1947


Box 26 Folder 27 Foreign Clippings, 1947


Box 26 Folder 28 Progess, Delay and Reports on FM, 1947-1948


Box 26 Folder 29 Armstrong, 1948


Box 26 Folder 30 FM Patent Suit--Armstrong vs. RCA, 1948


AFM--Petrillo


Box 26 Folder 31 General, 1948


Box 26 Folder 32 With FM, 1948


Box 26 Folder 33 With Television, 1948


Box 26 Folder 34 Hearing by House Labor Committee Investigating Charge that AFM Holds Monopoly,, 1948


Box 26 Folder 35 "Petrillo's No Caesar in Wilds"--AP Story, 1948


Box 26 Folder 36 Congressional Activities, 1948


Box 26 Folder 37 Hearing of Lemke Bill Before House Interstate and Foreign Commerce Committee,, 1948


Box 26 Folder 38 Senate Investigations into RCA Activities, 1948 May


Box 26 Folder 39 FCC--General, 1948


Box 26 Folder 40 Allocations, 1948


Box 26 Folder 41 Members, 1948


FM


Box 26 Folder 42 Broadcasting--Relaying and FM Networks, 1948


Box 26 Folder 43 Business--General, 1948


Box 26 Folder 44 Advertisments, 1948


Box 26 Folder 45 Future Progress and Predictions, 1948


Box 26 Folder 46 Radio Sets, 1948


Box 26 Folder 47 Promotion, 1948


Box 26 Folder 48 FM Equipment, 1948


Box 26 Folder 49 Organizations--General


Box 26 Folder 50 FMA, 1948


Box 26 Folder 51 IRE, 1948


Box 26 Folder 52 NAB, 1948


Box 26 Folder 53 RCA, 1948


Box 26 Folder 54 Personalities, 1948


Box 26 Folder 55 Technical Developments, 1948


Box 26 Folder 56 Television--General, 1948


Box 26 Folder 57 Advertisements, 1948


Box 26 Folder 58 General, 1948-1949


FCC



Box 27 Folder 1 Hearing on Mayflower Ruling, 1948


Box 27 Folder 2 Hearing on 44-50 Band, 1948


Box 27 Folder 3 Foreign--General, 1948


Box 27 Folder 4 Australia and New Zealand, 1948


Box 27 Folder 5 Canada, 1948


Box 27 Folder 6 Continental Europe, 1948


Box 27 Folder 7 Great Britain, 1948


Box 27 Folder 8 South Africa, 1948


Box 27 Folder 9 FM--General, 1948


Broadcasting


Box 27 Folder 10 Educational, 1948


Box 27 Folder 11 Future, 1948


Box 27 Folder 12 Programming, 1948


Box 27 Folder 13 Radio Stations, 1948


Box 27 Folder 14 Armstrong, 1949


Box 27 Folder 15 Low Band FM--W2XMN, 1949


Box 27 Folder 16 Congressional Activities--Senate Committee on Interstate and Foreign Commerce,, 1949


Box 27 Folder 17 FCC--General, 1949


Box 27 Folder 18 Pertaining to FM, 1949


Box 27 Folder 19 Pertaining to Television, 1949


Box 27 Folder 20 Frequency Allocations, 1949


Box 27 Folder 21 Members, 1949


Box 27 Folder 22 Foreign--General, 1949


Box 27 Folder 23 Australia and New Zealand, 1949


Box 27 Folder 24 Canada, 1949


Box 27 Folder 25 Continental Europe, 1949


Box 27 Folder 26 England and the British Isles, 1949


Box 27 Folder 27 South Africa and Africa, 1949


Box 27 Folder 28 FM--General, 1949


Box 27 Folder 29 Comments, Criticism, Letters to Editors, Hostile Propaganda, 1949


Box 27 Folder 30 Broadcasting--General, 1949


Box 27 Folder 31 Commercial, 1949


Box 27 Folder 32 Educational, 1949


Box 27 Folder 33 Experimental, 1949


Box 27 Folder 34 Programming, 1949


Box 27 Folder 35 Relaying and Networks, 1949


Box 27 Folder 36 Business--General, 1949


Box 27 Folder 37 Future--Progress, Predictions, 1949


Box 27 Folder 38 Promotion of, 1949


Box 27 Folder 39 Zenith Promotion of FM Sets, 1949


Box 27 Folder 40 Organizations--General, 1949


Box 27 Folder 41 FMA, 1949


Box 27 Folder 42 IRE, 1949


Box 27 Folder 43 NAB, 1949


Box 27 Folder 44 Personalities, 1949


Box 27 Folder 45 Radio--General, 1949


Box 27 Folder 46 General, 1949


Box 27 Folder 47 Technical Developments, 1949


Box 27 Folder 48 Television--General, 1949


Box 27 Folder 49 Future, 1949


Box 27 Folder 50 Stations, Programming, 1949


Box 27 Folder 51 Technical Improvements, 1949


Box 27 Folder 52 RCA, 1949



Box 28 Folder 21-22 General, 1950, (2 Folders)



Box 27 Folder 53 Armstrong, 1950


Congressional Activities


Box 27 Folder 54 House of Representatives, 1950


Box 27 Folder 55 Senate, 1950


Box 27 Folder 56 FCC--General, 1950


Box 27 Folder 57 Pertaining to FM, 1950


Box 27 Folder 58 Pertaining to Television, 1950


Box 27 Folder 59 Frequency Allocations, 1950


Box 27 Folder 60 Members, 1950


Box 27 Folder 61 Engineering and Technical Data, 1950


Foreign


Box 27 Folder 62 Australia and New Zealand, 1950


Box 27 Folder 63 Canada, 1950


Box 27 Folder 64 Continental Europe, 1950


Box 27 Folder 65 England and British Isles, 1950


Box 27 Folder 66 South Africa and Africa, 1950


Box 27 Folder 67 Featured Articles and Odd Bits, 1950



Box 28 Folder 6 FM--General, 1950



Box 27 Folder 68 Controversial Opinions, 1950


Box 27 Folder 69 Broadcasting, 1950


Box 27 Folder 70 Commercial, 1950


Box 27 Folder 71 Educational, 1950


Box 27 Folder 72 Experimental, 1950


Box 27 Folder 73 Programming, 1950


Box 27 Folder 74 Relaying and Networks, 1950


Box 27 Folder 75 Business, 1950


Box 27 Folder 76 Future, 1950


Box 27 Folder 77 Promotion of, 1950


Box 27 Folder 78 Equipment, 1950


Box 27 Folder 79 Facsimile and Multiplexing, 1950


Box 27 Folder 80 Mobile and Emergency Uses, 1950


Box 27 Folder 81 Technical and Scientific Developments, 1950


Box 27 Folder 82 General, 1950


Box 27 Folder 83 Organizations--General, 1950



Box 28 Folder 7 Organizations--General, 1950



Box 27 Folder 84 FMA, 1950


Box 27 Folder 85 IRE, 1950


Box 27 Folder 86 NAB, 1950


Box 27 Folder 87 Radio Club of America, 1950



Box 28 Folder 8 Personalities, 1950


Box 28 Folder 9 Radiation, 1950


Box 28 Folder 10 RCA, 1950


Box 28 Folder 11 Radio Industry, 1950


Box 28 Folder 12-13 Television--General, 1950, (2 Folders)


Box 28 Folder 14 Future, 1950


Box 28 Folder 15 Promotion, 1950


Box 28 Folder 16 Color, 1950


Box 28 Folder 17 Technical Developments and Improvements, 1950


Box 28 Folder 18 Stations, Networks and Improvements, 1950


Box 28 Folder 19 RCA's, 1950


Box 28 Folder 20 Zenith's Phonevision, 1950



Box 29 Folder 3-7 General, 1951, (5 Folders)



Box 28 Folder 23 AFM--Petrillo, 1951


Box 28 Folder 24 Armstrong--General, 1951


Box 28 Folder 25 Congressional Activities--General, 1951


Box 28 Folder 26 House, 1951


Box 28 Folder 27 Senate, 1951


Box 28 Folder 28 FCC--General, 1951


Box 28 Folder 29 Pertaining to FM, 1951


Box 28 Folder 30 Pertaining to Television, 1951


Box 28 Folder 31 Frequency Allocation, 1951


Box 28 Folder 32 Members, 1951


Box 28 Folder 33 Pertaining to Facsimile and Multiplexing, 1951


Box 28 Folder 34 Foreign--General, 1951


Box 28 Folder 35 Australia and New Zealand, 1951


Box 28 Folder 36 Canada, 1951


Box 28 Folder 37 Continental Europe, 1951


Box 28 Folder 38 England and the British Isles, 1951


Box 28 Folder 39 Africa, 1951


Box 28 Folder 40 Technical, 1951


FM


Box 28 Folder 41 Odd Bits and Feature Articles, 1951


Box 28 Folder 42 Controversial Opinions, Comments, 1951


Box 28 Folder 43 Broadcasting--General, 1951


Box 28 Folder 44 Commercial, 1951


Box 28 Folder 45 Educational, 1951


Box 28 Folder 46 Experimental, 1951


Box 28 Folder 47 Programming, 1951


Box 28 Folder 48 Relaying and Networks, 1951


Box 28 Folder 1 Business--General, 1951


Box 28 Folder 2 Production, Future, 1951


Box 28 Folder 3 Promotion of, 1951


Box 28 Folder 4 Equipment--Other than Radio Sets, 1951


Box 28 Folder 5 Facsimile and Multiplexing, 1951


Box 28 Folder 49 Mobile, 1951



Box 29 Folder 1 Mobile and Energy Uses, 1951


Box 29 Folder 2 Technical and Scientific Developments, 1951


Organizations


Box 29 Folder 8 FMA, 1951


Box 29 Folder 9 NARTB, 1951


Box 29 Folder 10 RTMA, 1951


Box 29 Folder 11 Personalities, 1951


Box 29 Folder 12 Radio Industry and AM Networks, 1951


Box 29 Folder 13-14 Television--General, 1951, (2 Folders)


Box 29 Folder 15 Future, 1951


Box 29 Folder 16 Promotion, 1951


Box 29 Folder 17 Color, 1951


Box 29 Folder 18 Technical Improvements, 1951


Box 29 Folder 19 Stations, Networks, Programming, 1951


Box 29 Folder 20 RCA's, 1951


Box 29 Folder 21 Zenith's Phonevision, 1951


Box 29 Folder 22 Radiation, 1951


Box 29 Folder 23-24 General, 1952, (2 Folders)


Box 29 Folder 25-36 Domestic, 1952 January-December, (12 Folders)



Box 30 Folder 1 General, 1952


Box 30 Folder 2 Television--General, 1952


Box 30 Folder 3 FM Interference, European Comments Regarding FM, 1952


Box 30 Folder 4 Foreign--General, 1952-1953


Box 30 Folder 5-8 Domestic--General, 1953, (4 Folders)


Box 30 Folder 9-10 General, 1953, (2 Folders)


Box 30 Folder 11 Television, 1953


Box 30 Folder 12 Armstrong's Death, 1954


Box 30 Folder 13 Domestic, 1954


Box 30 Folder 14 Foreign, 1954


Box 30 Folder 15 Television, 1954

Series IV: Alphabetical Files, 1886-1980

This series is comprised of a large set of files which appears to have been Armstrong's filing system, which was expanded upon at a later date to include litigation, the Armstrong Memorial Research Foundation Files, and others. This series is organized alphabetically by both name and subject.

Throughout the series there are folders which are filed by individual name. The majority are engineering publications, filed by author. Others contain legal statements, testimony, correspondence and memoranda.

There are also large sets of litigation files, which contain material relating to specific cases, generally filed by defendant. These files contain testimony, transcripts, abstracts, notes, disclosures, technical reports and papers, license agreements, articles, press releases, correspondence, legal memoranda, instruction manuals, exhibits and patent file wrappers. Large amounts of Armstrong's and relevant others original work including correspondence, diagrams, notes, testing data, photographs, notebooks, logbooks, and patent disclosures used in exhibits can be found under litigation files as well. The following organizations can be found amongst litigation; Admiral Corp., American Telephone & Telegraph, Co., Arvin Industries, Avco Corp., Bendix Radio and Aviation Corp,. De Forest Radio and Telegraph Co., DuMont Laboratories, Emerson Radio, FADA Radio and Electric Co., Gilfillan Bros., Hoffman Radio Corp., Fred M. Link, Motorola, Inc., Packard-Bell Co., Philco Corp., Radio and Television, Inc., Radio Corp. of America and the National Broadcasting Corp., the Radio Craftsman, Inc., Sentinel Radio, Sylvania Electric Products, Inc. and Wells-Gardner and Co. The litigation files found within this series should be researched in conjunction with series five as the two overlap.



Box 33 Folder 1 Adair, George P.--Biographical Sketch, 1947


Box 33 Folder 2 Adams, E., William Hubbard and A.M. Syeles--"A New Permanent From Powdered Magnanese Bismuthide,", 1952


Admiral Corporation Litigation


Box 33 Folder 3-4 Armstrong vs. Admiral Corp.--Pleadings, Extra Copies, Papers Not Used,, 1948-1958, (2 Folders)


Box 33 Folder 5 Allen, Edward Jr--Publications and FCC Testimony, 1946-1947


Box 33 Folder 6 "Very High Frequency and Ultra High Frequency Signal Ranges As Limited by Noise and Co-channel Interference,", 1947


Box 33 Folder 7-8 IRE Paper and Discussion Apertaining Thereto, 1945-1947, (2 Folders)


Box 33 Folder 9 Aircraft--Writings Regarding, 1939


Box 33 Folder 10 Allsop, Ray--Correspondence, 1946-1952


Alpine, New Jersey


Box 33 Folder 11 Correspondence, 1941


Box 33 Folder 12-13 Programs, 1941-1948, (2 Folders)


Box 33 Folder 14 Radio Station, General--CBS and NBC--Includes Lenox R. Lohr, 1939-1941


Box 33 Folder 15 Correspondence Regarding Closing of FM Station KE2XCC, 1954, 1957, 1954, 1957


Box 33 Folder 16 Listener Letters, 1953-1954


Box 33 Folder 17 Power Supply, 1947-1954


Box 33 Folder 18 W2XMN--Program Schedules, 1940-1941, undated, 1940-1941, undated


Box 33 Folder 19 Transcriptions and Pick-Ups--Associated Program Service, Inc., 1940-1949


Box 33 Folder 20 Los Angeles and Newark Radio--Geodite Survey, New York--Diagrams and Notes, Includes Negative of Equipment, undated (Negative), undated


Box 33 Folder 21 Personnel--Resumes, 1942-1953


Box 33 Folder 22 Bell Laboratories Record volume XXXI, no. 1--Includes Diagrams, 1953, undated, 1953, undated


Box 33 Folder 23 Instruction Sheets, 1938-1940


Box 33 Folder 24 Data, 1945-1948


Box 33 Folder 25 Transmitter, 100Mc FM, GE Z 9C24 Tubes, 1938-1945


Box 33 Folder 26 Motors and Generators, 1942, undated, 1942, undated


Box 33 Folder 27 880 P.A., 1940


Box 33 Folder 28 889 P.A., 1940


Box 33 Folder 29 110Mc Transmitter, 1939


Box 33 Folder 30 Programs--KE2XCC, 1941-1952


Box 33 Folder 31 Wiring and Power Control Circuit Data, 1942


Box 33 Folder 32 Radio Engineering Laboratories, Inc.--Wiring Diagram for 5B Panel, 1940



Box 224 Folder 5 Blueprint--Plan of Plot--Radio Station W2XMN, Alpine, New Jersey, 1938 January 18


33 1/3 LP


Box 224 Folder 6 "Final Sign-off Program of Major E.H. Armstrong's Pioneer FM Radio Radio Station--KE2XCC,", 1954 March 6



Box 34 Folder 1 93.1 Mc Recycling Circuit, Includes 93.1 Mc Quad Obsolete Diagrams, 1948-1949


Box 34 Folder 2 Correspondence Regarding Alpine, 1939-1953


Box 34 Folder 3 Report on Troubles Occuring on Radio Program Line No. 251 Between Muzak Studios, NYC, and W2XMN-W2XEA, Alpine, NJ,, 1939-1948


Box 34 Folder 4 Alpine Log Sheets, 1947


Box 34 Folder 5 FCC Authorization for Radio Station W2XMN, 1936-1958


Box 34 Folder 6 Number of Transmitter Offs During the Period 1942 Jan 1-December 31--Includes Description of Equipment Used in Propagation Tests, 1942, 1947, undated, 1942, 1942, 1947, undated


Box 34 Folder 7 Commercial Radio Equipment Co.--Engineering Appendix I, An Engineering Amendment to Application--File No. BPH-513, WFMN, Alpine,, 1949


Box 34 Folder 8 Air Raid Alarm and Precautions--Project Conelrad, 1951-1954


Box 34 Folder 9 Programs--Multiplex Tests--FM Stations Heard at KE2XCC--Correspondence, 1938-1953 (Photographs), 1938-1953


Box 34 Folder 10 Construction and Operation of W2XMN--Correspondence, 1937-1938


Box 34 Folder 11 Concentric Line--Drawings and Invoices, 1939-1949


Box 34 Folder 12 Telco Lines, Trouble With--Logs and Correspondence, 1941-1948


Box 34 Folder 13-14 Liscenses From FCC, 1943-1952, (2 Folders)


Box 34 Folder 15 Rectifiers, Drawings and Correspondence, 1940


Box 34 Folder 16 Property--14+ Acres, Phelps Parcel, Correspondence, 1937-1958


Box 34 Folder 17 W2XNM Site, Correspondence, 1937-1952


Box 34 Folder 18 Tubes--Drawings, Blueprints, Correspondence, 1944


Box 34 Folder 19 Orders, 1943-1953


Box 34 Folder 20 Blueprints, Spray-pump, Rectifier Assembly From Various Elevations, Transmitter Schematics,, 1936-1937


Box 34 Folder 21 Sketches of Items Being Made, 1938


Box 34 Folder 22 Wiring Diagram, 1938


Box 34 Folder 23 50 Kw FM RF Schematic, Blueprints (Photographs), undated


Box 34 Folder 24 Original Modulation Drawings, undated


Box 34 Folder 25 Rhombic Antenna, AFIXHR, Drawings, 1952


Box 34 Folder 26 Water Cooler--Instructions and Drawings, 1942


Box 34 Folder 27 Diagrams and Instructions--Tubes, 1951-1952


Box 34 Folder 28 Modulators--Modulator Unit Normal Meter Readings, 1940-1941


Box 34 Folder 29 Monitor Receiver--Circuit Diagram and Parts List, 1941, undated, 1941, undated



Box 35 Folder 1 Drawings, Blueprints, Sketches and Correspondence, 1951-1952


Box 35 Folder 2 General Electric--Panel Schematic for W2XMN, 1940-1941


Box 35 Folder 3 Received Orders, Invoices and Drawings, 1952-1954


Box 35 Folder 4 Westinghouse Electric--Correspondence, Diagrams and Data, 1946, undated, 1946, undated


Box 35 Folder 5 Facsimile Testing--Includes Drawings by John W. Bose, 1940


Meter Readings


Box 35 Folder 6 W2XMN--Frequency 42.8Mc, 1944-1946


Box 35 Folder 7 KE2XCC--Frequency 93.1Mc, 1951-1953


Box 35 Folder 8 W2XEA--Frequency 93.1Mc, 1947-1951


Box 35 Folder 9 W2MXN--Frequency 44.1Mc, 1947-1949


Box 35 Folder 10 Rhombic Antenna--Drawings, 1939-11953


Box 35 Folder 11 General Electric--FM Circular Antenna Characteristics, Correspondence and Drawings,, 1942-1950


Box 35 Folder 12 Antenna--Donut--92.1Mc, Drawings, 1946-1947


Box 35 Folder 13 Tower Lighting--Drawings, Blueprints and Correspondence, 1937-1954


Box 35 Folder 14 New Antenna--Concentric Line Feed, 43.1Mc, 1941-1942



Box 36 Facsimile Transmissions--Columbia Lboratory to KEA46 to KE2XCC, 1949


Logbooks



Box 37 Folder 1 Number 1--W2XMN, 117.43 Mc, 111 Mc, 92.5 Mc--WFMN, 104.9 Mc, 1939 April 3-1949 July 20


W2XMN, 42.8 Mc


Box 37 Folder 2 Number 2, 1939 August 14-1940 January 31


Box 37 Folder 3 Number 3, 1940 February 1-April 21, 1940 February


Box 37 Folder 4 Number 4, 1940 April 22-August 31, 1940 April


Box 37 Folder 5 Number 5, 1940 September 1-December 31, 1940 September


Box 37 Folder 6 Number 6, 1941 January 1-May 21, 1941 January



Box 38 Folder 1 Number 7, 1941 May 22-October 14, 1941 May


Box 38 Folder 2 Number 8, 1941 October 15-1942 March 8


Box 38 Folder 3 Number 9, 1942 March 9-August 7, 1942 March


Box 38 Folder 4 Number 10, 1942 August 8-1943 January 6


Box 38 Folder 5 Number 11, 1943 January 7-June 7, 1943 January


Box 38 Folder 6 Number 12, 1943 June 8-November 6, 1943 June



Box 39 Folder 1 Number 13, 1943 November 7-1944 April 6


Box 39 Folder 2 Number 14, 1944 April 7-September 6, 1944 April


Box 39 Folder 3 Number 15, 1944 Sptember 7-1945 February 5, 1944


Box 39 Folder 4 Number 16, 1945 February 6-July 7, 1945 February


Box 39 Folder 5 Number 17, 1945 July 8-December 6, 1945 July


Box 39 Folder 6 Number 18, 1945 December 7-1946 May 6



Box 40 Folder 1 Number 19, 1946 May 7-October 5, 1946 May


W2XEA, 92.1 Mc


Box 40 Folder 2 Number 1, 1946 February 8-July 29, 1946 February


Box 40 Folder 3 Number 2, 1946 July 30-December 28, 1946 July


WFMN, 98.9 Mc


Box 40 Folder 4 1945 November 30-1946 February 7, May 24, 1945 November


W2XMN, 42.8, 44.1 Mc


Box 40 Folder 5 Number 20, 1946 October 6-1947 March 6 (at 44.1 Mc beginning January 24, 1947), 1946 October 6-1947 March 6


Box 40 Folder 6 Number 21, 1947 March 7-August 5, 1947 March



Box 41 Folder 1 Number 22, 1947 August 6-1948 January 4


Box 41 Folder 2 Number 23, 1948 January 5-June 2, 1948 January


Box 41 Folder 3 Number 24, 1948 June 3-October 28, 1948 June


Box 41 Folder 4 Number 25, 1948 October 29-1949 March 27


W2XEA, 92.1 Mc


Box 41 Folder 5 Number 3, 1946 December 29-1947 May 29



Box 42 Folder 1 Number 4, 1947 May 30-1947 October 28


Box 42 Folder 2 Number 5, 1947 October 29-1948 March 28


Box 42 Folder 3 Number 6, 1948 March 29- August 23, 1948 March


Box 42 Folder 4 Number 7, 1948 August 24-1949 January 19 (at 93.1 Mc beginning December 9, 1948), 1948 August 24-1949 January 19


W2XEA, 93.1 Mc (up until 1949 April 27) and KE2XCC, 93.1 Mc (beginning 1949 April 28), 1949 April, 1949 April


Box 42 Folder 5 Number 8, 1949 January 20-June 19, 1949 January


Box 42 Folder 6 Number 9, 1949 June 20-November 16, 1949 June



Box 43 Folder 1 Number 10, 1949 November 17-1950 April 17


Box 43 Folder 2 Number 11, 19 50 April 18-September 16


Box 43 Folder 3 Number 12, 1950 September 17-1951 February 16


Box 43 Folder 4 Number 13, 1951 February 17-1951 July 17


W2XMN, 44.1 Mc


Box 43 Folder 5 Number 26, 1949 March 28-1949 August 15


WFMN, 104.9 Mc and KE2XCC, 23.1 Mc, 26.0 Mc, 11.6575 Mc


Box 43 Folder 6 Number 2, 1949 July 21-1951 March 26 (26.0 Mc beginning 1950 March 11), 1949 July 21-1951 March 26, 1950 March



Box 44 Folder 1 Number 3, 1951 March 27-October 5


KEA46


Box 44 Folder 2 Number 1, 1949 June 29-1952 November 6


KE2XCC, 93.1 Mc


Box 44 Folder 3 Number 14, 1951 July 18-December 16, 1951 July


Box 44 Folder 4 Number 15, 1951 December 17-1952 May 14


Box 44 Folder 5 Number 16, 1952 May 15-October 11, 1952 May


Box 44 Folder 6 Number 17, 1952 October 12-1953 March 11



Box 45 Folder 1 Number 18, 1953 March 12-1953 August 8


Box 45 Folder 2 Number 19, 1953 August 9-1954 January 2


Box 45 Folder 3 Number 20, 1954 January 3-March 6, 1954 January


KEA46


Box 45 Folder 4 Number 2, 1953 January 15-1954 February 8


AFIXHR, 22.8625 Mc, 22.8585 Mc


Box 45 Folder 5 Number 1, 1952 August 28-1953 May 12


Box 45 Folder 6 Number 2, 1953 May 10-1954 January 4



Box 46 Folder 1 Number 3, 1954 January 5-June 30, 1954 January


Box 46 Folder 2 W2XMN, 1944 August 1-1947 November 8


Box 46 Folder 3 W2XMN, 1940 November 2-1944 July 31


Unidentified Mc


Box 46 Folder 4 1950 July 20-1953 December 20



Box 47 Folder 1 1947 November 8-1950 July 19


Box 47 Folder 1 1953 December 21-1955 September 22


Box 47 Folder 2 Visitors Register for W2XMN, W2XEA, and KE2XCC, 1947 April 26-1955 May 2


Box 47 Folder 3 Includes Log for Unidentified Frequency, 1955 September 23-1956 June 4



Box 35 Folder 15 The Physical Review v. 86, no.2 American Physical Society New York, NY, 1952 April 15


Box 35 Folder 16 Frequency Modulation, Notes on Lecture Course--Paper Presented in New York, AIEE,, 1940


Box 35 Folder 17 Ancient History of Marconi Wireless--De Forest Radio, Experiments and Results in Wireless Telephony, 1892, 1907, 1892, 1907


Armstrong Memorial Research Foundation


Box 35 Folder 18 Publications--Columbia Alumni News, Pulse, Columbia Engineering and Applied Science..., 1954, 1963, undated, 1954, 1963, undated


Box 35 Folder 19 Dodge, M. Hartley--The Hartley Fund, 1956-1963


Box 35 Folder 20 Raytheon Assignment and Settlement, 1956


Box 35 Folder 21 Fiftieth Anniversary of the Regenerative Circuit--Includes Original Photograph from the Smithsonian Institution of the Original Components of the Feedback Circuit, 1912-1913, 1921, 1961-1962 (Photographs), 1912-1913, 1921, 1961-1962


Box 35 Folder 22 Inventory from Columbia University Laboratory--Historical Equipment, 1954-1961


Box 35 Folder 23 Estate of E.H. Armstrong--Salary Information, 1954-1963


Box 35 Folder 24 Operational Costs for Alpine Radio Station--CU Lab and Alpine Lab, 1952-1953


Box 35 Folder 25 Estate of E.H. Armstrong--CU Telephone Expenses, 1952-1969


Box 35 Folder 26 CU Blue Cross Medical Insurance, Premiums Paid, 1959-1966


Box 35 Folder 27 Frequency Modulation--Bibliography, 1946, 1967-1968, 1946, 1967-1968



Box 224 Folder 7 Certificate of Incorporation, Files December 14, 1955--Thomas Styles Notes,, 1955 March 16-17


Reel--Magnetic Tape


Box 224 Folder 11 "My Memories of Major Armstrong In WWI and Early Radio Experiments in Louisville, Kentucky, by Kenneth S. Bixby,", 1965 August



Box 48 Folder 1 Armstrong, E.H.--Biographical Information and Bibliography of Articles Published by,, 1940-1963


Box 48 Folder 2 Wisconsin Alumni Research Foundation, 1954-1955


Box 48 Folder 3 Correspondence--Gifts, Notes, Lists, 1944-1970


Box 48 Folder 4 Certificate--Honorary Member for Esther Marion Armstrong, 1956 May 28


AT and T Litigation


Infringements


Box 48 Folder 5 Notes and Opinions on Infringement of Various Patents, Excerpts From Chaffee Patents,, 1948-1952


Box 48 Folder 6 Published Data on AT and T Relay With Notes, 1951-1953


Box 48 Folder 7 Infringement of Relay Patent--Includes Patent Filing Documents, 1941, 1953, 1941, 1953


Box 48 Folder 8 Infringement of Multiplex Radio Signaling--Includes Patent Filing Documents, 1926, 1931-1941, 1953, 1926, 1931-1941, 1953


Box 48 Folder 9 Infringement of Multiplex and Relay Patents--Includes Drafts of Armstrong's Letters, Graphs, and Notes, 1933, 1951-1953, 1933, 1951-1953


Box 48 Folder 10 195 Bulletin 1949 September


Box 48 Folder 11 Audio Fair--Clippings, 1952


Box 48 Folder 12 Austin, Louis W.--"The Comparative Sensitiveness of Some Common Detectors of Electrical Oscillations,", 1910


Arvin Industries Litigation


Armstrong vs. Arvin Industries


Box 48 Folder 13 Pleadings, 1954-1956


Box 48 Folder 14 Answer, Data, Extra Copies, Papers Not Used, 1948, 1954, 1948, 1954


Avco Litigation


Armstrong vs. Avco Manufacturing Corp.


Box 48 Folder 15 Pleadings, 1954-1956


Box 48 Folder 16 Client's Papers--Early Correspondence, Crosley Division, 1941-1951


Box 48 Folder 17 Extra Copies, 1941-1956


Box 48 Folder 18 Legal Documents--Dana Raymond, 1955


Box 48 Folder 19 Letters--Dana Raymond, 1949-1956


Box 48 Folder 20 Charts, 1949-1956


Box 48 Folder 21 Agreement and General Release, 1956


Box 48 Folder 22 John H. Bose--Data Compiled for Dana Raymond, 1956


Box 48 Folder 23 Data, Copies, Papers Not Used, 1948-1955


Box 48 Folder 24-25 Trial Documents, 1955, (2 Folders)


Box 48 Folder 26 Baker, Ray S.--"Marconi's Achievements," McClure's Magazine v. XVIII, no. 4, 1902 February


Box 48 Folder 27 Barber, N.F.--"Narrow Band-Pass Filter Using Modulation," Wireless Engineer 1946 October


Box 48 Folder 28 Barker, R.H.--"Rhombic Aerial Chart," Wireless Engineer 1948 November


Box 48 Folder 29 Barkhausen--Excerpt From "Generation of Continuous Oscillations by Means of An Arc" Methods of Observation, undated (German), undated


Box 48 Folder 30 Beale, F.S.--"A Low Noise and Distortion Audio Multiplexing Equipment with High Stability Carrier Supply" AIEE Technical Paper 50-162,, 1950 April


Box 48 Folder 31 Becker, J.A.--"Transistors" in Electrical Engineer, Includes Other Publications, 1949 March, 1950 January, 1949, 1950 January


Box 48 Folder 32 Bell Laboratories Record v. XII, no. 3 and v. XIV, no. 3, 1933 November, 1935 November, 1933, 1935 November


Box 48 Folder 33 Beers, George L.--Articles Regarding, 1944


Box 48 Folder 34 "Committee on Science and the Arts"--Reprinted from the Journal of the Franklin Institute v. 238, no. 1, 1944 July


Bell Telephone Labs--Armstrong Infringement Suits


Box 48 Folder 35 Correspondence, Memoranda and Drawings, 1930-1936, 1950-1953, 1956, 1930-1936, 1950-1953, 1956


Box 48 Folder 36 Armstrong Notes on Chaffee Patents, 1935, 1952, 1935, 1952



Box 49 Folder 1 Correspondence, Publications, Notes, Charts, Comparisons on Patent Specifications, Improvements in Multiplex High Frequency Signaling System, 1911, 1923-1953, 1911, 1923-1953


Box 49 Folder 2 History of Armstrong and Bell Labs Activities, 1940-1953


Box 49 Folder 3 Bell Sound Systems--Correspondence, 1953


Bendix Radio Litigation


Box 49 Folder 4 Bendix Radio--Armstrong Patents, 1946-1947


Armstrong vs. Bendix Aviation Corp


Box 49 Folder 5 Correspondence, Charts, Drafts and Settlement, 1954-1961


Box 49 Folder 6 Complaint, 1955


Box 49 Folder 7 Bennington, T.W.--"Radio Propagation in the Frequency Range of 40-100Mc,", 1948


Box 49 Folder 8 Beverage, H.H.--Statements, 1944-1952


Box 49 Folder 9 Blue Network--Correspondence and Scripts for "Spark Coil to Radar,", 1943-1944


Box 49 Folder 10 Bricout, P.A.--Paper--Universite Laval Faculte Des Sciences Genie Electrique "Hyperfrequences," 1948 (French), 1948


Box 49 Folder 11 BBC--Correspondence, 1946-1953


Box 49 Folder 12 Broadcasting--Clippings, 1945-1946


Box 49 Folder 13 Broadcasting Magazine Correspondence, 1951


Box 49 Folder 14 Brown, G.H.--Statements on Behalf of RCA, undated


Box 49 Folder 15 Browning Laboratories, Inc.--Glenn Browning--Correspondence, 1952-1955


Box 49 Folder 16 Burlinghame, Roger--Correspondence, 1950


Box 49 Folder 17 Burghard, George--Report of Hurricane at Westhampton Beach, Long Island, 1938 September 21, undated, 1938 September, undated


Box 49 Folder 18 Caldwell-Clements, Inc.--Correspondence, 1941-1953


Box 49 Folder 19 Callandar, M.V.--"Signal to Thermal Noise Ratio,"--Comparison of 1950 AM and FM Receivers, 1950, 1950, 1950


Box 49 Folder 20 Canadian Marconi Co.--Correspondence, 1948-1954


Box 49 Folder 21 Capen, William--"What is FM?,", undated


Box 49 Folder 22 Carlson, W.L.--"Simultaneous Field Strength Recordings on 46.7Mc, 83.75Mc, and 107Mc,"--RCA,, 1945


Box 49 Folder 23 Carnahan, C.W. and Edward Classen--"Field Intensities Beyond Line of Sight at 45.5M and 91 Megacycles,", 1947


Box 49 Folder 24 Carnahan, C.W.--"The Rule of the Limiter in FM Noise Suppression ," Rochester IRE Convention,, 1940


Carson, John R.


Box 49 Folder 25 Correspondence and Articles, 1922-1951


Box 49 Folder 26 Correspondence Regarding Reference to Carson's 1922 Paper in August, Wireless Engineer, 1940, 1922, 1940


Box 49 Folder 27 "Notes on the Theory of Modulation," IRE, 1922 February


Box 49 Folder 28 "The Reduction of Atmospheric Disturbances,", 1928


Box 49 Folder 29 With T.C. Fry--"Variable Frequency Electric Circuit Theory of Frequency Modulation,", 1937 October


Box 49 Folder 30 Capital Broadcasting Co.--Correspondence, 1944-1950


Box 49 Folder 31 Carroll, T.J.--Memo to Mr. E.W. Allen and Members of the Ad Hoc Committee,, 1950


Box 49 Folder 32 Carter, P.S.--Circuit Relations in Radiating Systems and Applications to Antenna Problems,, 1932


Box 49 Folder 33 Chase National Bank--Lab Accounts, 1934



Box 50 Folder 1 Chase National Bank--Correspondence, 1952-1953


Box 50 Folder 2 Cherry, R.O.--"The Daylight Transmission of Wireless Waves Over Sea Water,", undated


Box 50 Folder 3 "Signal Strength Measurements of 3LO Melbourne,", undated


Box 50 Folder 4 Cocking, W.T.--"The Detector Input Circuit,", 1935


Box 50 Folder 5 "Diode Detector Distortion," in Wireless World and Audio Engineering, 1951


Box 50 Folder 6 Colebrook, F.M.--"The Apparent Demodulation of a Weak Station by a Stronger One,", 1931


Box 50 Folder 7 "The Fantasy Analysis of the Heterodyne Envelope," Experimental Wireless 1930 April


Box 50 Folder 8 "The Theory of the Straight Line Rectifier,", 1930


Collins Radio Co.


Box 50 Folder 9-10 Correspondence, Photographs and Booklets, 1949-1951, (2 Folders)


Box 50 Folder 11-12 Blueprints for Resnatron Amplifier and Tripler, 1949-1952, (2 Folders)


Columbia University


Box 50 Folder 13 Annual Commencement, 1913 June 4


Box 50 Folder 14 Publications--Marconi and Others Not Columbia University, 1900-1922


Box 50 Folder 15 EHA Notebook--Single and Cascade Audion Circuits, Experiments, Specifications for Patents,, undated


Box 50 Folder 16-21 EHA Laboratory Reports for Undergraduate Electrical and Mechanical Engineering Classes,, 1912-1913, (6 Folders)



Box 51 Folder 1 EHA Laboratory Reports for Undergraduate Electrical and Mechanical Engineering Classes,, 1912-1913


Box 51 Folder 2-4 Class Notes for Undergraduate Electrical and Mechanical Engineering Classes,, undated, (3 Folders)


Box 51 Folder 5-12 General, 1934-1954, (8 Folders)


Box 51 Folder 13 Laboratory--General, 1950-1952


Box 51 Folder 14 Graduation, 1952


Box 51 Folder 15 Press Release on FM by EHA, 1935


Box 51 Folder 16 Press Release--"Public Broadcast of Static Free FM Radio 25 Years Ago,", 1964


Columbia Broadcasting System


Box 51 Folder 17 Correspondence, 1939-1953


Box 51 Folder 18-19 Information Booklets and Articles, 1944-1949, undated, 1944-1949, undated, (2 Folders)


Box 51 Folder 20 Statements and Briefs, 1945-1946


Box 51 Folder 21 Television--General, 1946-1948


Box 51 Folder 22 Consumers Research and Consumer Reports Articles on FM, 1950


Box 51 Folder 23 Continental Network--Correspondence, Press Releases, Articles, Memoranda, Map,, 1947-1953



Box 52 Folder 1-2 Correspondence, 1947-1949, (2 Folders)


Box 52 Folder 3 Promotion and Publicity, 1947-1948


Box 52 Folder 4-5 Other Networks--Correspondence, 1947, (2 Folders)


Box 52 Folder 6 Cords, O.--"Examination of a Short Wave Receiver,", 1928


Box 52 Folder 7 Council for Scientific and Industrial Research--Australia--Articles, 1947-1949


Box 52 Folder 8-9 Cravath, Swaine and Moore--Correspondence, Memoranda, 1941-1953, (2 Folders)

(Includes Photographs)


Box 52 Folder 10 Court, W.P.W.--"Diode Operating Conditions,", 1939


Box 52 Folder 11 Courtney, Jeremiah--Testimony, 1947


Box 52 Folder 12 Coy, Wayne--Correspondence, Testimony and Memoranda, 1948-1950


Box 52 Folder 13 Crain, Harry M.--"Low Frequency Discriminator,", 1949


Box 52 Folder 14 Crossley, A.--"Piloting Vessels by Electrically Energized Cables,", 1921


Box 52 Folder 15 Crowder, Fred--Testimony, 1947


Box 52 Folder 16 Damm, Walter J.--Correspondence, 1944-1950


Box 52 Folder 17 David, William H.--Memorandum, 1950


Box 52 Folder 18 Day, James R.--Correspondence, Articles, 1942-1951


Box 52 Folder 19 "A Receiver for Frequency Modulation,", 1939


Box 52 Folder 20 "The Serrasoid FM Modulator,", 1948-1949


De Forest Litigation


Box 52 Folder 21-22 Clippings and Articles, 1912-1952, (2 Folders)


Box 52 Folder 23-24 Lindridge, Charles--Systems for Amplifying Electric Current Variations--Notes, Data, Diagrams 1905-1925 (Photographs), 1905-1925, (2 Folders)


Box 52 Folder 25 High Frequency Amplifier--Blueprints, 1918


Box 52 Folder 26 Special Report on Use of "Tickler" Coil with Ultraudion, 1915


Box 52 Folder 27 Summary of Interview with Charles Lindridge on Gas Tubes--Memorandum,, 1925


Box 52 Folder 28 Report of An Examination of Patent Documents "1, 507,016," Submitted to William Davis,, 1932


Box 52 Folder 29 Affidavits--Charles Marx and Harry Dawson, 1926


Box 52 Folder 30 Legal Agreement between Elman Myers and G. Richardson on Wireless Telephone,, 1914


Box 52 Folder 31 Reports on Developments in Audion Circuits by Lee De Forest at Lab of Federal Telegraph and Co., 1911-1925, 1925, 1911-1925, 1925


Box 52 Folder 32 Lindridge, Charles--"Telephone Repeaters,", 1910


Box 52 Folder 33 Articles, 1912


Box 52 Folder 34 Lindridge Patent for System for Amplifying Electric-Current Variations,, 1912


Box 52 Folder 35 Lee De Forest's Amplifier--Correspondence, 1921


Box 52 Folder 36 De Forest Correspondence--Photostats, 1912-1921


Box 52 Folder 37 Armstrong, E.H.--"Operating Features of the Audion,", 1914


Box 52 Folder 38 Patents, 1907-1931


Box 52 Folder 39 Hazeltine Chart No. 5: Regenerative Audion Circuit and Oscillation--Diagram,, undated



Box 53 Folder 1 Logwood Sketches, undated


Box 53 Folder 2 Contract of Employment Between the Federal Telegraph Company and Lee De Forest,, 1915


Box 53 Folder 3 Exhibit R--Four Checks, 1914-1918


Box 53 Folder 4 Wiring Diagram--Federal Cabinet, undated


Box 53 Folder 5 Schramm Notebook of Equipment Costs, 1911


Box 53 Folder 6 "Recent Developments in the Work of the Federal Telegraph Company," by De Forest,, 1913 January


Box 53 Folder 7 Marconi's Wireless Telegraph Company--Arbitration, 1919


Box 53 Folder 8 De Forest Letter Regarding Salary, 1912


Box 53 Folder 9 Legal Documents--De Forest v. Owens: Photographic Printing Machine, 1928


Box 53 Folder 10 Affidavits of Elman Myers, 1931


Box 53 Folder 11 Photographs of Cabinets and Antenna, circa, 1910


Box 53 Folder 12 Statements by Henry Burrows, Clarence Kelting and Harry Moore, 1920


Box 53 Folder 13 Affidavit of Franklin Smith, 1919


Box 53 Folder 14 Correspondence--General, 1919-1931


Box 53 Folder 15 E.C. Thomson's Evidence of Radio Transmission, 1921


Box 53 Folder 16 Clippings, 1913-1914


Box 53 Folder 17 General, 1913-1931


Box 53 Folder 18 Armstrong and Westinghouse v. De Forest Radio--Petition for Rehearing,, 1922


Box 53 Folder 19 Patent for Edison Telephonic Repeater, 1886


Box 53 Folder 20 Audion Diagrams, undated


Box 53 Folder 21 History of the Litigation, undated


Box 53 Folder 22 Statement by Armstrong and Correspondence After Winning Case--Statements by Others, circa, 1920-1933


Box 53 Folder 23 Clippings, 1922-1936


Box 53 Folder 24 "American Telephone Practice" by Kempster Miller--Exhibit T, 1932


Box 53 Folder 25 Court Memorandum, 1932 January 12


Box 53 Folder 26 Court Summons for Armstrong and Westinghouse Co., 1921


Box 53 Folder 27 Letter on Interference--De Forest v. Meissner v. Armstrong v. Langmuir No. 41,790,, 1928


Box 53 Folder 28 Pennie, Davis, Marvin and Edmunds--Correspondence, 1917-1918


Box 53 Folder 29 Federal Reporter Articles on Case, 1924-1926


Box 53 Folder 30 Opinion of Courts, 1924


Box 53 Folder 31 Patents, 1895-1922


Box 53 Folder 32 Receiver Sensitivity Graphs, 1930-1934


Box 53 Folder 33 De Forest's Notebook Records, undated


Box 53 Folder 34 Frequency Amplifier Assembly--Blueprints, 1918


Box 53 Folder 35 Board of Engineers--Correspondence, 1943


Box 53 Folder 36 Armstrong and Westinghouse v. De Forest Radio and Telegraph--Legal Documents,, 1920


Box 53 Folder 37 Copies of De Forest and Van Etten Notebook Entries, undated


Box 53 Folder 38 Superheterodyne Notes and Diagrams, 1918


Box 53 Folder 39 Daily Account of Attempt to Gather Equipment in California by Unknown Author,, 1929


Regenerative Circuit Case Evidence


Box 53 Folder 40-41 Photographs and Negatives of Federal Telegraph Co. Chicago Station,, undated, (2 Folders)


Box 53 Folder 42 No. 562 In Equity--Langmuir and GE Co. v. De Forest et.al.--Book, undated


Box 53 Folder 43 General, 1913-1921


Box 53 Folder 44 Letter--H.K. Howe to Gano Dunn, 1934 November 22


Box 53 Folder 45 Legal Assignments, 1927-1941


Box 53 Folder 46 Memo on Crosby Interference, 1937 October 18


Box 53 Folder 47 Federal Register, 1939 May 24


Box 53 Folder 48-50 Armstrong v. De Forest--Legal Notes, undated, (3 Folders)


Box 53 Folder 51 Legal Assignments, 1920-1922


Box 53 Folder 52 Hazeltine Charts--Numbers 1-9, 1921


Box 53 Folder 53 Affidavit of Walter S. Lemon, 1920


RCA et. al. v. REL Lab, Inc


Box 53 Folder 54 Incomplete De Forest Notes and Printed Petitions, undated


Box 53 Folder 55 Incomplete De Forest Notes and Printed Petitions--Static Elimination Notebook,, undated


Box 53 Folder 56-58 Incomplete De Forest Notes, undated, (3 Folders)



Box 54 Folder 1-3 Correspondence--General, 1923-1946, undated, 1923-1946, undated, (3 Folders)


Box 54 Folder 4 Westinghouse v. Independence Wireless Telegraph Co.--Affidavits and Other Legal Documents,, 1923-1926


Box 54 Folder 5 Letters to the Radio Editor of the New York Times Regarding Articles on De Forest, 1930-1931


Box 54 Folder 6 Letter from Armstrong to David Sarnoff Regarding Misrepresentations of Superheterodyne,, 1930 September 30


Box 54 Folder 7 De Forest Affidavits, 1911-1916


Box 54 Folder 8 Armstrong Notes with Diagrams, 1927 March 3


Box 54 Folder 9 "The Double-Audion Type of Receiver" by A.H. Taylor, 1915


Box 54 Folder 10 "A System for Location and Control of Radio,", undated


Box 54 Folder 11 Atlantic Monthly 1930 December


Box 54 Folder 12 W2XAG--Data, 1941 August 8


Box 54 Folder 13 De Forest Phonofilm Corporation and De Forest Radio Telephone and Telegraph Company,, 1924-1929


Box 54 Folder 14 De Forest Radio Telephone and Telegraph Co. v. Audiotron Sales Co. et al--Affidavit,, 1916


Box 54 Folder 15 Armstrong and Westinghouse v. De Forest Radio and Telegraph, 1925


Box 54 Folder 16 Statements of Henry P. Burrows and Clarence Kelting, 1920 June 10


Box 54 Folder 17 Exhibit 38--Decision of the Examiner of Interference in the Matter of Langmuir v. Armstrong,, 1921


Box 54 Folder 18 Patent on Wireless Receiving Systems for Continuous Waves--Appeal, 1913


Box 54 Folder 19 Actions Regarding Interference, 1932-1933


Box 54 Folder 20 Armstrong Correspondence with W. Taylor Regarding Interference, 1930


Box 54 Folder 21 Letter Regarding Van Etten Possible Fraud, 1925 March 1


Box 54 Folder 22 Notes and Diagrams by W.H. Jay--Super-regenerative Duplex, 1921


Box 54 Folder 23 Translation of Article from Jahrbuch der Drahtlosen Telegraphie und Telephonie 1915 The Audion Amplifier and the "ultraudion" by Lee De Forest, 1915, 1915, 1915


Box 54 Folder 24 Letter From Armstrong to C. Terry, 1924 May 12


Box 54 Folder 25 Diagrams, 1931


Box 54 Folder 26 Letter from Thomas Ewing to C. Terry, 1924 May 13


Box 54 Folder 27 "Feedback Case Reaches Supreme Court,", 1928 October 22


Box 54 Folder 28 "Negative Resistance for Amplifying Telephonic Currents"--Article, 1911


Box 54 Folder 29 Letter from Armstrong to Charles Underhill, 1914


Box 54 Folder 30 USA and Meissner v. De Forest Radio Telephone and Telegraph Co.--List of Armstrong Exhibits,, 1929 April 10


Box 54 Folder 31 Exhibits from Delaware Case in Safe Deposit, undated


Box 54 Folder 32 Letter from E.R. Hughes to Frank Wiegand, 1925 December 31


Box 54 Folder 33 Federal Reporter Articles, 1928


Box 54 Folder 34 Circuit Diagrams by Greanleaf Prickard--Photostats, 1913


Box 54 Folder 35 "International Commission for Scientific Radiotelegraphic Researches"--Article,, 1914 July


Box 54 Folder 36 Affidavits, Memoranda and Other Legal Documents, circa, 1926


Box 54 Folder 37 Purchase of Patent by United States, 1919


Box 54 Folder 38 Affidavits and Other Legal Documents, 1920-1926


Box 54 Folder 39 Amplifier--Reports, Blueprints; Lecture, 1918-1919


Box 54 Folder 40 "Method of Heterodyning Signal by Itself"--Paper and Diagrams, undated


Box 54 Folder 41-42 Clippings, 1924, (2 Folders)


Box 54 Folder 43 Correspondence--General, 1930-1931


Box 54 Folder 44 "Wins Feedback Decision"--Article, 1933


Box 54 Folder 45 "This is Station-"--Article, 1924 May


Box 54 Folder 46 Patents--Footnote from Unknown Document, undated


Box 54 Folder 47 Correspondence--General, 1930-1931


Box 54 Folder 48 De Forest v. Meissner v. Armstrong v. Langmuir--Supplemental Brief for Armstrong,, undated


Box 54 Folder 49 Armstrong and Westinghouse v. De Forest Radio Telephone and Telegraph--Defendant's Memorandum,, undated


Box 54 Folder 50 Incomplete Interference Document, 1922 May


Box 54 Folder 51 Defendant's Exhibit No. 21--"Radio-Apparatus Receiving,", 1916 January 3


Box 54 Folder 52 Defendant's Exhibit 40A--Article in the Electrician, 1915 September


Box 54 Folder 53 Engineering Articles, 1914-1925


Box 54 Folder 54 De Forest v. Meissner v. Armstrong v. Langmuir--Exhibit F--Mason Affidavit,, 1914 June


Box 54 Folder 55 Affidavit for Leo Lang, undated


Box 54 Folder 56 List of Published Articles in Engineering Journals, undated


Box 54 Folder 57 Blueprints for Wiring from De Forest Telephone and Telegraph, 1921-1922


Box 54 Folder 58 "Long Legal Battle Comes to an End"--Press Release, undated


Box 54 Folder 59 Statement on De Forest's Work by Unknown, undated


Box 54 Folder 60 Letter from Armstrong to General Harbord, 1934


Box 54 Folder 61 Letter Between Unknown Correspondents, 1928 December 21


Box 54 Folder 62 "Policy and Problems of Company"--Statement on De Forest's Work at Federal Telegraph by Unknown,, 1931


Box 54 Folder 63 Ultraudion Circuits--Blueprints, 1915-1916


Box 54 Folder 64 Testimony and Correspondence, undated


Box 54 Folder 65 Letter from E.R. Hughes to Drury Cooper, 1925 March 10


Box 54 Folder 66 Memorandum with Respect to Testimony Given by Jewett, Arnold, and Colpitts--Given in High Vacuum Case,, undated


Box 54 Folder 67 Clippings, 1932


Box 54 Folder 68 Letter from Thomas Ewing to Armstrong on De Forest's Stock, 1924 January 18


Box 54 Folder 69 Audion Bulb Claim Form, undated


Box 54 Folder 70 List of Quotes from the Testimony of Several Court Cases, undated


Box 54 Folder 71 RCA and AT and T v. Universal Wireless Communication Co. and De Forest Radio Co-- Deposition,, undated


Box 54 Folder 72 RCA and AT and T and De Forest Radio Co v REL--Volume 4 Plaintiff's Exhibits,, undated


Box 54 Folder 73 Articles from Engineering Journals--Including Defendant's Exhibit No. 38-40,, 1913-1915


Box 54 Folder 74 RCA Statement on Armstrong's Patent and the Lawsuit v REL, 1933


Box 54 Folder 75 De Forest v. Meissner v. Armstrong v. Langmuir--Briefs, 1917


Box 54 Folder 76 Pan American Wireless Telegraph and Telephone Co.--Advertisements, 1919


Box 54 Folder 77 De Forest v Meissner v Armstrong v Langmuir--Legal Documents--General,, 1914-1919


Box 54 Folder 78 Handwritten List of Events Relating to De Forest Cases, undated


Box 54 Folder 79 Defendant's Exhibit No. 6C--"Opening Features of the Audion" by Armstrong--Photostat,, 1914


Box 54 Folder 80 Letter of Transmittal, Report F-18-5 "Frequency Modulation Noise with Modulation Applied,", 1935 June 12


Box 54 Folder 81 Response Frequency Characteristics of Phase Modulated Transmitter--Graphs,, undated


De Forest v. Meissner v. Armstrong v. Langmuir



Box 55 Folder 1 Interference Legal Documents, 1928


Box 55 Folder 2 Defendant's Exhibit No. 6-W--Arendt Checks, and Additional Checks,, 1913-1922


Box 55 Folder 3 Exhibit L--Proceedings of the Institute of Radio Engineers, 1915


Box 55 Folder 4 Interference Correspondence, 1918


Box 55 Folder 5 Legal Documents--General, 1913



Box 253 Armstrong Exhibit 6-C--Underhill Diary of, 1913


Box 253 Armstrong Exhibit C--Mason Notebook, 1913


Box 253 Armstrong Exhibit D--Herman Burgi Diary, 1912


Box 253 Armstrong Exhibit U--W.T. Russell Diary, 1913



Box 55 Folder 6 Letter from Armstrong to Charles Martin, 1935 November 26


Box 55 Folder 7 Defendant's Exhibits--Federal Telegraph Lab Photographs, undated


Box 55 Folder 8 Unidentified Letter, undated


Box 55 Folder 9 Feedback Litigation--Clippings, 1934


Box 55 Folder 10 Data for Cross Examination of De Forest--Draft, 1926 November 27


Box 55 Folder 11 Letter from David Sarnoff to Armstrong, 1934 August 16


Box 55 Folder 12 Statement by Lee De Forest, undated


Box 55 Folder 13 Regenerative Circuit Correspondence--Including Exhibits 28, 29, 49, 1913-1941


Box 55 Folder 14 Armstrong and Westinghouse v. De Forest Radio Telephone and Telegraph Co.--Petitions and Affidavits,, undated


Box 55 Folder 15 Feedback Litigation--Correspondence, 1919-1935


Box 55 Folder 16 Research--Correspondence, 1918-1926


Box 55 Folder 17 File Wrapper and Contents of De Forest Patent No. 1,507,016--Pennie, Davis, Marvin and Edmunds,, 1924


Box 55 Folder 18 De Forest Notebooks and Diagrams and Annotated Legal Documents from Several Cases,, 1914-1933


Box 55 Folder 19 Van Etten and De Forest Notebooks and Opinions from Several Court Cases,, 1913-1933


Box 55 Folder 20 Van Etten Notebook, undated


Box 55 Folder 21 Van Etten and De Forest Notebooks, undated


RCA v. REL


Box 55 Folder 22 Universal Testimony and Arguments, 8963.6H, 1930


Box 55 Folder 23 Certified Copies of File Wrappers of De Forest Patents, 1915-1924


Box 55 Folder 24 Patent Documents, 1914


Box 55 Folder 25 Correspondence and Patent Documents, 1923-1931


Box 55 Folder 26 Patent Documents, 1914


Box 55 Folder 27 Incomplete Argument Regarding Patent Law, undated


Box 55 Folder 28 "Characteristics and Operation of Western Electronic Audions"--Report and Graphs,, undated


Box 55 Folder 29 Regenerative Circuit Case--General, 1929-1930


Box 55 Folder 30 File Wrapper and Contents of De Forest Patent No. 1,507,017--Pennie, Davis, Marvin and Edmunds,, 1924


Box 55 Folder 31 RCA and AT and T v. Universal Wireless Communication and the De Forest Radio Co.--Transcript of Testimony,, 1930



Box 56 Folder 1 "Irving Langmuir: A Register of His Papers in the Library of Congress,", 1962


Box 56 Folder 2 Weagant and Van Etten Testimony, undated


Box 56 Folder 3-4 De Forest Testimony, undated, (2 Folders)


Box 56 Folder 5 Defendant's Exhibits No. 2 and 2A--Notebook of Diagrams, undated


Box 56 Folder 6 De Forest Patent, 1912-1920


Box 56 Folder 7 "The Audion- Detector and Amplifier" by De Forest, 1913 December


Box 56 Folder 8 Interference No. 41,790--Decision of Examiners-in-Chief, 1922


Box 56 Folder 9 De Forest Notes (Printed), 1912 June-1914 February


Box 56 Folder 10 Report of Special Master on Multiple Cases, 1920


Box 56 Folder 11 Industrial and Engineering Chemistry, 1934 November


Box 56 Folder 12 Radio Engineering, 1930 July


RCA and AT and T v. Universal Wireless Communications and De Forest Radio Co.


Box 56 Folder 13 Arguments and Preliminary, 1930


Box 56 Folder 14 Depositions of Lindridge, Hughes, Roberts and Adams, 1930


Box 56 Folder 15 Depositions of John Stone Stone, Jewitt and Kent, 1930


Box 56 Folder 16 Arguments and Preliminary, 1930


RCA and AT and T and De Forest Radio v. REL


Box 56 Folder 17-20 Briefs, Petition and Memorandum, 1933, (4 Folders)


Marconi Wireless v. De Forest Radio , Telephone and Telegraph Co. and Lee De Forest


Box 56 Folder 21-23 Briefs, Opinions, Pleadings and Evidence under Supplemental Bill, 1916, 1921, undated, 1916, 1921, undated, (3 Folders)


Box 56 Folder 24 De Forest Radio Co. v. GE--Brief and Petitions, 1930


Box 56 Folder 25 Langmuir v. Armstrong--Brief's, Armstrong's Record, Patent Interference,, 1917


Box 56 Folder 26 Armstrong and Westinghouse v. Lee De Forest Et al--Petition for Writ of Certiorari,, 1926


Box 56 Folder 27 Armstrong and Westinghouse v. De Forest Radio, Telephone and Telegraph Co.--Report of Special Master Contempt Proceedings,, 1921


Box 56 Folder 28 Westinghouse and Armstrong v. USA Et al--Brief, 1928


Box 56 Folder 29 Westinghouse and RCA v. Royal Eastern Electrical Supply Corp. of America and Amsco Products, Inc.--Opinion of Judge Campbell on Final Hearing,, 1925



Box 57 Folder 1-3 De Forest, Meissner, Armstrong, Langmuir--Various Cases--Brief, Interference, Deposition and Exhibit,, 1921-1923, (3 Folders)


Box 57 Folder 4 Westinghouse v. Radio-Craft Co. and De Forest Radio, Telephone and Telegraph Co.--Opinion and Decree on Final Hearing,, 1923


Box 57 Folder 5 De Forest Radio Co. v. GE--Brief Amici Curine, 1930


Box 57 Folder 6 Samuel Kintner Et al v. Atlantic Communication Co.--Legal Documents, 1916


RCA Et al v. REL


Box 57 Folder 7-9 Scrapbook--Plaintiff's and Defendant's Exhibits, undated, (3 Folders)



Box 58 Folder 1 Dellinger, J.H.--Testimony and Publication, 1930-1945


Box 58 Folder 2 Denny, Charles R.--Press Releases and Articles, 1946-1947


Box 58 Folder 3 De Mars, Paul A.--Correspondence, Papers, Graphs and Memoranda, 1942-1953


Box 58 Folder 4 Diemer, G. and K.S. Knol--"Low Level Triode Amplifier for Microwaves,", 1950


Box 58 Folder 5 Dickieson, A.C. and T.J. Grieser--"A Multi-Channel Radio Relay System for Long Distances," Memorandum,, 1951


Box 58 Folder 6-12 Dillard, Everett--Correspondence, Memoranda, Statements, Speeches, Articles, Press Releases, Publications,, 1947-1954, (7 Folders)


Box 58 Folder 13 Doerfer, John C.--Correspondence and Articles, 1953


Box 58 Folder 14 Dodge, Marcellus Hartley--Correspondence, 1935-1953


Box 58 Folder 15 Dumont, Allen B.--Correspondence, Publications, 1943-1953


Box 58 Folder 16 Dominick and Dominick--Correspondence and Statements of Account, 1947-1952


Box 58 Folder 17 Dunlap, Orrin E.--Correspondence, Includes Dunlap's "Edwin H. Armstrong, Inventor of Revolutionary Circuits,", 1943


DuMont Laboratories Litigation


Box 58 Folder 18 Armstrong v. DuMont Laboratories--Pleadings, 1953-1956


Box 58 Folder 19 Data, Extra Copies, Papers Not Used, 1950-1955


Box 58 Folder 20 Dunmore, F.W.--"A Unicontrol H.Radio Detection Finder,", 1926


Box 58 Folder 21 Dunn, Gano--Correspondence, 1933-1953


Box 58 Folder 22 Durr, Clifford J.--Correspondence, Articles, 1940-1948


Box 58 Folder 23 Eales, H.--"Juhrbuch Der Drahtlosen Telegraphie," Includes Translation, 1908, 1945 (German), 1908, 1945


Box 58 Folder 24 Echoscope--Analysis of the Sine Sweep Echoscope with Diagrams, 1941


Box 58 Folder 25-26 Educational FM--Correspondence, Publications, Articles, Papers, Press Releases,, 1941-1952, (2 Folders)


Box 58 Folder 27 Educational Institutions--Correspondence, 1949-1953


Box 58 Folder 28-29 Dow, Lohnes and Albertson--Correspondence, Publications, Reports, Articles,, 1948-1954, (2 Folders)



Box 59 Folder 1 Eisenhower, D.D.--Address Before Columbia College Forum on Democracy, 1949 February 12


Box 59 Folder 2 Eitel McCullough Inc.--Correspondence, Blueprints, Advertisements, 1939-1953


Box 59 Folder 3 Electric and Musical Industries Ltd.--Correspondence, Articles, Annual Meeting Booklets,, 1946-1953


Box 59 Folder 4 The Electrician "Micro-Ray-Wireless,", 1931 April 3


Box 59 Folder 5 Electrical Communications volume 10, No. 1, 1931 July


Box 59 Folder 6 The Electrical Review "Short Wave Radio Telephony,", 1931 April 10


Box 59 Folder 7-17 Electronics Correspondence, Articles, Advertisements,, 1930-1953, (11 Folders)


Box 59 Folder 18-19 Elster, J. and H. Gerrel--Articles, 1895, 1900 (German), 1895, 1900, (2 Folders)


Box 59 Folder 20 IF Signal Generator Driven by 88Mc FM Transmitter--Includes Drawing by W.R. Hutchins,, 1947


Emerson Litigation


Armstrong v. Emerson


Box 59 Folder 21 Dunn and Bradstreet Report on Emerson, 1958


Box 59 Folder 22 Digest of the Record--Batchelor Transcript, undated


Box 59 Folder 23 Extract From Deposition of Major Armstrong in Armstrong v. RCA, 1949 March


Box 59 Folder 24 Armstrong Licensees Under Receiving Set License Agreement, undated


Box 59 Folder 25 File Index, undated


Box 59 Folder 26 List of Pleadings, 1957


Box 59 Folder 27 Data, Extra Copies, Papers Not Used, 1948-1955


Box 59 Folder 28 Outline of Trial Book, 1956


Box 59 Folder 29 Data For Request for Admission, 1956


Box 59 Folder 30 Original Logs of Station W2AG in C.R. Runyon, Jr.'s Handwriting, 1934-1941--Four Groups of Extracts From W2AG Log, 1935-,, 1934-1958


Box 59 Folder 31 Memoranda on Testimony To Be Given By Witnesses For Armstrong, 1957


Box 59 Folder 32-33 Plaintiff's Proposed Findings of Fact and Conclusion of Law Submitted After Trial,, undated, (2 Folders)


Box 59 Folder 34 Telfunken Agreement, 1954


Box 59 Folder 35 Lists of Corrected Pages of Transcripts, 1958-1959, undated, 1958-1959, undated


Box 59 Folder 36 August Hund--"High Frequency Measurements,", 1933


Box 59 Folder 37 Decision of Judge Dawson on the Motion to Substitute Mrs. (Esther Marion) Armstrong, 1955


Box 59 Folder 38 Second Draft, Reply to Brief of Balupunkt-Werke--Affidavit of Robert Dome,, 1953


Box 59 Folder 39 Defendant's Objections to Plaintiff's Proposed Findings of Fact and Conclusions of Law,, 1959


Box 59 Folder 40 Plaintiff's Memorandum and Their Significance, undated


Box 59 Folder 41 Defendant's Proposed Findings of Fact and Conclusions of Law, undated



Box 60 Folder 1-3 "Miscellaneous Memoranda"--Legal Memoranda and Notes, 1934, 1955-1957, 1934, 1955-1957, (3 Folders)


Box 60 Folder 4-8 Bulletins and Publications, 1940-1957, undated, 1940-1957, undated, (5 Folders)


Box 60 Folder 9-11 Awards--Correspondence, Publications, Franklin Institute, 1915-1958, (3 Folders)


Box 60 Folder 12-18 Plaintiff's Exhibit 45-51--Publications and Articles, FCC Testimony,, 1927-1948, (7 Folders)


Plaintiff's Exhibit 39


Photographs--Taken from two Binders--Includes Duplicates

Yankee Network, W1XER, W1XoJ, W39B, Mount Wachuset, Seabrook Beach, New Hampshire, Mount Washington, Mount Asnebunskit, Edwin H. Armstrong, Paul DeMars, Harold Beverage


Box 60 Folder 19-21 1930, 1937-1941, 1930, 1937-1941, (3 Folders)


Plaintiff's Exhibits



Box 61 Folder 1-16 53-70--Articles, Publications, Flyer, Includes US Signal Corps. Technical Services,, 1939-1956, (16 Folders)


Box 61 Folder 17-23 71-79--Awards and Medals--Franklin Institute Reports, Edison Medal,, 1941-1958, (7 Folders)


Box 61 Folder 24-27 80-83--FCC Rules and Regulations, FCC Decisions, 1940-1945, 1958, 1940-1945, 1958, (4 Folders)


Box 61 Folder 28-35 84-91--Emerson Advertisements, 1948-1949, (8 Folders)


Box 61 Folder 36 List of Plaintiff's Exhibits, 1958


Box 61 Folder 37 1--Stipulation Regarding Exhibits, 1960


Box 61 Folder 38-44 2-11--Armstrong's US Patents, Articles, and Surrogates Short Certificate, 1916-1940, 1954-1957, 1916-1940, 1954-1957, (7 Folders)


Box 61 Folder 45 12--Armstrong's Will and Associated Documents, 1954


Box 61 Folder 46-48 13-15--Title Reports for Patents, 1957-1958, (3 Folders)


Box 61 Folder 49-51 16-18--Armstrong Letters and Statements, 1948-1949, (3 Folders)


Box 61 Folder 52 19--Composite of Plaintiff's Request for Admissions and Defendant's Answers Thereto,, 1956


Box 61 Folder 53 20--List of Actions Instituted and Settled, undated


Box 61 Folder 54 24--List of Royalties, Total Through 1953, undated, 1953, undated


Box 61 Folder 55-58 25-29--Armstrong Letters to Various Military Personnel, 1941, (4 Folders)


Box 61 Folder 59 30--Armstrong v. Hansell--Decision of Board of Examiners, 1947


Box 61 Folder 60 31--Crosby v. Armstrong--Decision of Board of Appeals, 1939


Box 61 Folder 61 28--Henry Stimson's Thank You Letter to Armstrong, 1941 March 11


Box 61 Folder 62-63 23--Decision of German Patent Office and References Cited Therein,, 1954 November 15, (2 Folders)


Box 61 Folder 64 34--Stipulation Regarding Israel's Testimony, undated


Box 61 Folder 65-68 35-38--Emerson Instruction Manuals, undated, (4 Folders)


Box 61 Folder 69-73 42A-44--Articles, Letters, IRE Standards, 1940-1952, (5 Folders)


Box 61 Folder 74-76 42A-68--Articles, Publications, FCC Documents, 1935-1945, undated, 1935-1945, undated, (3 Folders)


Box 61 Folder 77 92-99--Articles, Publications,1922-1934


Box 61 Folder 78 101-110--Articles, File Wrappers, 1935-1946, undated, 1935-1946, undated



Box 62 Folder 1-3 Reference No. 113-136--Articles, Patents, Reports, Diagrams, 1928-1936, (3 Folders)


Box 62 Folder 4 Memorandum Concerning Some Fundamentals of Radio Communications, undated


Plaintiff's Exhibits


Box 62 Folder 5-11 1-20, 69-136--Diagrams, Articles, Publications, Reports, Press Releases, Patents,, 1916-1958, (7 Folders)


Box 62 Folder 12 Memoranda on Exhibits to be Used at the Trial, 1957


Box 62 Folder 13 Plaintiff's Exhibits and Their Significance, undated


Box 62 Folder 14 Defendant's Exhibits and Their Significance, undated


Defendant's Exhibits


Box 62 Folder 15 HH, 1946


Box 62 Folder 16-19 G-WW, 1954-1958


Box 62 Folder 20 Prima Facie Exhibit File--Certified Photo static Copy of Wrapper, Armstrong Patent No. 1,941,069, 1933, 1958, 1933, 1958


Armstrong Patent 1, 941,069


Reference No. 12



Box 63 Folder 1-7 Handwritten Lab Notes, 1932 November-1933 September, (7 Folders)


Box 63 Folder 8 Handwritten Notes--"Some Conclusions,", 1933 March 12


Box 63 Folder 9-11 Handwritten Lab Notes, 1936 January-April , June-July, November-1937 January, 1936 January-April, (3 Folders)


Box 63 Folder 12 Handwritten Summaries of Work in, 1932-1935


Box 63 Folder 13 Reference No. 13--Handwritten Original March 1932 Disclosure with Accompanying Drawings, Stamped by Moses and Nolte for Patent, 1932 March 30, March 1932, 1932 March 30


Box 63 Folder 14 Reference No. 14--Typewritten Copy of 1932 Disclosure to Moses and Nolte--No Accompanying Drawings, 1932 March 30, 1932, 1932 March 30


Box 63 Folder 15 ReNo. 15--Runyon Paper Indicating Reduction to Practice on July 20, 1932 (Photostat), July 20, 1932


Reference Numbers


Box 63 Folder 16 18-19--Armstrong Papers, Published, 1916, 1936, 1916, 1936


Box 63 Folder 17 20--Dutch Patent Corresponding to US Patent 1,949,069, 1938-1957


Box 63 Folder 18 21--References Cited in German Patent Office Decision--Extra Copies,, 1957


Box 63 Folder 19 20,24,27,43-45--Lists, Publications, 1941-1958


Box 63 Folder 20 30A--Article, 1934


Box 63 Folder 21 31--"History of the Application Which Resulted in US Patent No. 2,215,284," Armstrong, 1940 September 17, 1949, undated, 1940 September, 1949, undated


Box 63 Folder 22 33--Original Patent Write Up of Predistortion Patent Application--Original Disclosure Reissue Patent 21,660--Includes Drawings, Stamped Moses and Nolte 1940 February 7, January 4, 1940 February


Box 63 Folder 23 33--Article, undated


Armstrong v. Hansell


Box 63 Folder 24 34--File Wrapper and History of Interference, 1941-1947


Box 63 Folder 25-27 35--Transcript of Record of Testimony of Armstrong, 1947, (3 Folders)


Box 63 Folder 28 37--Brief For Armstrong, 1947


Box 63 Folder 29 39--Reply Brief for Armstrong, 1947


Box 63 Folder 30 40--Reply Brief for Hansell, 1947



Box 64 Folder 1-4 41-47--Hearing Awarding Counts to Armstrong--Petitions--Affidavits,, 1947, (4 Folders)


Box 64 Folder 5-9 49--Original Exhibits--Includes Photographs (Photostats), 1947, (5 Folders)


Box 64 Folder 10 52-55--Publications and Articles, 1940s-1950s


Box 64 Folder 11 60--Article, 1937


Box 64 Folder 12 61--File Wrapper for Armstrong Patent 1,941,066, 1933


Box 64 Folder 13 62--Armstrong Handwritten Original Disclosure of Two-Path Detector "Method of Heterodyning Signal By Itself"--Includes Accompanying Drawings,, 1929 March 16


Box 64 Folder 14 62-1--Article, 1957


Box 64 Folder 15 63--Armstrong Handwritten Original Disclosure of Two-Path Detector "Heterodyning Modulated Signal By Itself"--Includes Accompanying Drawings,, 1930 April 14


Box 64 Folder 16 63-1--Article, 1937


Box 64 Folder 17` 64--Crosby v. Armstrong--Record of Interference Proceedings, 1936


Box 64 Folder 18 64A-64-1--Court Decision June 1938 Legal Brief--Seeley Patent, 1938-1945, June 1938, 1938-1945


Box 64 Folder 19 65--Crosby Patent 2,229,640--File History, 1922-1961



Box 65 Folder 1-2 65-65E--Crosby Patent; Publications and Articles, 1922-1958, (2 Folders)


Box 65 Folder 3 70-74--Publications and Articles, 1923-1931


Box 65 Folder 4-7 301-314--Publications and Articles, 1921-1935, (4 Folders)


Box 65 Folder 8-11 330-360--Publications and Articles, 1918-1935, (4 Folders)


Box 65 Folder 12 362--Roder, Hans--"Frequency Modulation"--Includes Drafts, 1922


Box 65 Folder 13-16 363-443--Publications; Patents; Wright US and British Patents, 1919-1938, (4 Folders)



Box 66 Folder 1-16 460-480H--Publications, Articles, Letters, Patents, Statements, Armstrong FM Trademark, Testimony, FCC Annual Reports, Testimony, Rules and Regulations, Proceedings Before, Transcript of Meeting of Radio Engineers,, 1922-1957, (16 Folders)



Box 67 Folder 1-3 481-483R--Publications, 1935-1950, (3 Folders)


Box 67 Folder 4 484A--Armstrong, Free Licensing to the War Department--Clippings and Correspondence,, 1941


Box 67 Folder 5-8 484C-491C--Publications and Correspondence, 1936-1953, (4 Folders)


Box 67 Folder 9-15 488R--FCC Documents, 1936-1954, (7 Folders)


Box 67 Folder 16 492C--Armstrong Typewritten Summary Regarding Mr. Davis' "Theory,", 1953 May 8


Box 67 Folder 17-18 482 I-P--Compilation of 1945 FCC Report, circa 1945, 1945, 1945



Box 68 Folder 1-3 492P-510--Publications--Includes FCC Reprint from Federal Regulations Part 3,, 1941-1955, (3 Folders)


Box 68 Folder 4-5 511-522--Publications Regarding Awards, Correspondence, 1944-1951, (2 Folders)


Box 68 Folder 6 524--Edison Medal--Original Correspondence, 1941-1942


Box 68 Folder 7 523--Armstrong Address, 1948


Box 68 Folder 8 525--Radio Club of America--Armstrong Medal to H.J. Round--Includes Photographs,, 1952 December 12


Box 68 Folder 9 526-532--Franklin Award--Patents--Publications, 1928-1958


Box 68 Folder 10 532A-533--Legal Memoranda and Patents, 1922-1957


Box 68 Folder 11-14 535A--RCA Engineering Reports--Crosby, 1930-1942, (4 Folders)


Box 68 Folder 15-16 540-550--Patents, 1925-1957, (2 Folders)



Box 69 Folder 1-4 551-554--Conrad Patent, Address and Other Material Concerning Experiment with Narrow Band FM at KDKA, Conrad-Armstrong Interference --Includes Original Correspondence,, 1927-1948, (4 Folders)


Box 69 Folder 5-7 555-563--Patent and File Wrapper Histories, 1917-1936, (3 Folders)


Armstrong v. RCA and NBC


Box 69 Folder 8-14 564-572--Testimony, Depositions and Exhibits Accompanying them, 1951-1953, undated, 1951-1953, undated, (7 Folders)


Box 69 Folder 14 570-571--Patents and Publications, 1933-1950



Box 70 Folder 1 573--Exhibits Accompanying Dome Deposition, 1953


Box 70 Folder 2 574-582--Dome Patents with Legal Notes and Publications, 1927-1935


Box 70 Folder 3-5 584-654--Patents and Publications, Heising Diagrams, IRE Standards,, 1927-1958, (3 Folders)


Box 70 Folder 6 650--Original Diagrams and Handwritten Notes by Unidentified Author On Audion (Marcellus Hartley Lab),, 1931-1933


Box 70 Folder 7 670--Emerson Advertisements, 1948-1950


Box 70 Folder 8 681-682--Letter and Registered Receipts, 1948-1949


Box 70 Folder 9 683--Depositions of Herzog, Abrams and Israel--Includes Notes by Unknown Author,, 1952


Box 70 Folder 10-12 684--Depositions of Abrams and Israel--RCA, "Overall Fidelity of Standard Broadcast and FM Receivers Manufactured in 1948," 1948, 1952, 1948, 1952, (3 Folders)


Box 70 Folder 13 685-686--Copy of K-3 Agreement Between Armstrong and Westinghouse--Copies of Assignment '447 Patent, 1923, 1927, 1923, 1927


Box 70 Folder 14 687--Stipulation, Emerson Licenses from RCA, 1958


De Mars, Paul


Box 70 Folder 15 690--Article, 1940


Box 70 Folder 16 691-692--Deposition and Exhibits, 1940-1952


Box 70 Folder 17-18 693-694--1940 1943, undated, 1943, undated, (2 Folders)


Box 70 Folder 19 730--Bowles, Edward L--Biographical Sketch, Citations, Air Force Directive,, 1943-1957



Box 71 Folder 1 733-738--Articles, Publications, 1946-1957


Box 71 Folder 2-4 739-745--War Department and Army and Air Force Technical Manuals,, 1943-1954, (3 Folders)


Box 71 Folder 5-7 746-755--Publications--UNESCO, Commerce Department, Advertising Research Foundation, 1953-1957, undated, 1953-1957, undated, (3 Folders)


Box 71 Folder 8-9 Index--Prior Art Cited by Defendant Against Armstrong Reissue Patent 21,660 and Patent '066, 1957, undated, 1957, undated, (2 Folders)


Box 71 Folder 10 Memoranda on References, 1956


Notebooks--Harry Sadenwater


Box 71 Folder 11-13 No. 1-- June 22, 1934 to July 30, 1940--1 through 259Y--Includes Original, June 22, 1934, (3 Folders)


Box 71 Folder 14 No. 1-- June 22, 1934 to May 25, 1939--1 through 41--Original, June 22, 1934


Box 71 Folder 15 No. 2-- January 9, 1939 to January 10, 1940--42 through 131--Original, January 9, 1939


Box 71 Folder 16-17 No. 2-- July 30, 1940 to July 15, 1943--260 through 533--Includes Original, July 30, 1940, (2 Folders)


Box 71 Folder 18 No. 3-- July 30, 1940 to July 15, 1943--260 through 533--Original, July 30, 1940



Box 72 Folder 1-3 No. 3-- August 13, 1943 to March 20, 1948--534 through 648--Includes Original, August 13, 1943, (3 Folders)


Box 72 Folder 4 No. 4-- March 18, 1940 to April 12, 1940--194X through 227--Original, March 18, 1940


Box 72 Folder 5 No. 5-- April 14, 1940 to October 20, 1940--228 through 301--Original, April 14, 1940


Box 72 Folder 6 No. 6-- October 21, 1940 to March 29, 1941--302 through 397--Original, October 21, 1940


Box 72 Folder 7 No. 7-- March 31, 1941 to May 4, 1942--398 through 505--Original, March 31, 1941


Box 72 Folder 8 No. 8-- May 4, 1942 to November 23, 1943--506 through 591--Original, May 4, 1942


Box 72 Folder 9 No. 9-- December 7, 1943 to October 1944--592 through 612X--Original, December 7, 1943


Box 72 Folder 10 No. 10-- October 6, 1944 to March 12, 1945--613 through 616YB--Original, October 6, 1944


Box 72 Folder 11 No. 11-- March 21, 1945 to September 9, 1945--616YC through 616YP--Original, March 21, 1945


Box 72 Folder 12 No. 12-- September 21, 1945 to April 23, 1947--616YQ through 622X--Original, September 21, 1945


Box 72 Folder 13 No.13-- May 15, 1947 to March 20, 1948--622Y through 648--Original, May 15, 1947


Patents


German Wide Swing Application



Box 73 Folder 1 Brief in Draft Form, Various Suggestions, Brief As Filed, 1952-1953


Box 73 Folder 2 References, 1953, undated, 1953, undated


Box 73 Folder 3 Papers in Dutch Application, 1934-1938


Box 73 Folder 4 Reply to Briefs Filed by Blaupunket-Werke, 1952-1953


Box 73 Folder 5 Drafts, 1953


Box 73 Folder 6 Intermediate Decision of Appeal Board, 1954 (German), 1954


Box 73 Folder 7 Briefs, Reply's, Decision, 1952-1954 (German), 1952-1954


Box 73 Folder 8 Analysis of Features Cited By Emerson Against Armstrong Patent,, undated


Box 73 Folder 9 Prior Art Cited By Defendant Against Armstrong Reissue Patent 21,660,, undated


Box 73 Folder 10-11 Prior Art Cited by Defendant Against Armstrong Patent '069, undated, (2 Folders)


File Wrappers


Box 73 Folder 12 US Patent 1,941,069, December 26, 1933--Serial No. 653,237, Filed January 24, 1933--Includes Original Notes and Figures, 1932-1933, 1957, 1932-1933, 1957


Box 73 Folder 13 US Patent 2,215, 284, September 17, 1940--Serial No. 319,569, Filed February 19, 1940--Reissue Patent 21,660, December 17, 1940--Includes Correspondence,, 1940-1947


Box 73 Folder 14 US Patent 21,660, December 17, 1940--Serial No. 362,177, Filed October 21, 1940--Filed in Canada, February 1, 1940 Serial No. 479,948, 1940-1949, February 1, 1940, 1940-1949


Box 73 Folder 15 Emerson Correspondence, 1940-1952, 1957, 1940-1952, 1957


Box 73 Folder 16 Prior Art Cited by Defendant Against Armstrong Patent '069, undated


Box 73 Folder 17 Heising's Notes on Prior Art Patents Cited by Examiner, 1957-1958


Box 73 Folder 18 Exhibits for Dana Raymond, 1958 October 14


Box 73 Folder 19 Report of Harry W. Houck, 1958


Box 73 Folder 20-21 Correspondence and Notes of Raymond A. Heising, 1957-1958, (2 Folders)


Box 73 Folder 22 Prior Art Cited by Defendant Against Armstrong Reissue Patent 21,660,, undated


Box 73 Folder 23 "Explanation of Wide Band Patent"--Typed copy, undated


Box 73 Folder 24 Decision of German Patent Office of November 15, 1954--Includes Translation, 1952-1954 (German), 1952-1954


Box 73 Folder 25 Legal Documents, undated


Box 73 Folder 26 Transparencies--Claims v. Patents, undated


Emerson Service Manuals


Box 73 Folder 27 1951-1952



Box 74 Folder 1-3 1950-1951, (3 Folders)


Transcripts--Stenographers Minutes


Box 74 Folder 4-13 1958 October 10, 14-17, 20-24, 27-31, November 3, 1958 October, (10 Folders)


Transcripts--Stenographers Minutes



Box 75 Folder 1-3 1958 November 5-6, 10-12, 18, 1959 May 6, 1958 November, 1959 May 6, (3 Folders)


Box 75 Abstracts--Part I-III, 1958, (3 volumes)


Box 75 Folder 4 Engstrom, E.W.--Correspondence and Testimony, 1933-1951


Box 75 Folder 5-6 Espenschied, Lloyd--Correspondence, 1933-1951, (2 Folders)


Box 75 Folder 7 Everitt, W.L.--"Frequency Modulation,", 1940 November


Box 75 Folder 8 Facsimile System--Correspondence and Articles, 1940-1951


FADA Radio and Electric Company Litigation


Box 75 Folder 9 FADA--Marion Armstrong v. FADA Radio and Electric Company--Pleadings and Answers to Allegations,, 1956



Box 76 Folder 1 Fake FM Sets--Advertisements, 1952


Box 76 Folder 2 Fancher, H.B.--"Microwave Television Relay Networks", undated


Box 76 Folder 3 Farren, L.I.--"Phase Detectors-Some Theoretical and Practical Aspects,", 1946


Box 76 Folder 4 Fassbender, H. and Kurlbaum--"Dependence of the Range of Very Short Waves on the Height of the Transmitter Above the Ground,", undated


Box 76 Folder 5-6 Faught Company--General, 1946-1953, (2 Folders)


Box 76 Folder 7 Fine, H.--UHF "Propagation within Line of Sight,", 1951


Fink, D.G.


Box 76 Folder 8 "From the Mountaintops,", 1939 April


Box 76 Folder 9 "The Transistor-A Crystal Triode,", 1949


Box 76 Folder 10 Fleming, J.A.--"Approximate Theory of the Flat Projector (Franklin) Aerial Used in the Marconi Beam System of Wireless Technology,", 1927


Box 76 Folder 11 Fletcher, H. and Galt, R.H.--"The Perception of Speech and its Relation to Telephony,", 1950


Box 76 Folder 12 Flowers, J.W.--"The Direct Measurement of Lightning Current,", 1941


Box 76 Folder 13 Fly, James L.--General, 1934-1944


Box 76 Folder 14 Electronics: Radio, Communication, Industrial Applications of Electron Tubes…Engineering and Manufacture, 1939 October


Box 76 Folder 15 Tele-Tech and Electronic Industries volume 12, number 4,, 1953 April


Box 76 Folder 16 The Franklin Institute--Correspondence and Awards (Photograph), 1940-1951


Box 76 Folder 17 Freeland, E.C.--"FM Receiver Design Problems,", 1949


Fortune Magazine



Folder 18-20 Correspondence, Articles and volume 38, number 2, 1939-1951, (3 Folders)



Box 262 Folder 9 Volume 37, Number 2, 1948 February


Finance



Box 76 Folder 21 Experimental Expenses Regarding FM, 1933-1949


Box 76 Folder 22 General, 1945-1947


Box 76 Folder 23-25 Correspondence and Bills, 1947-1954, (3 Folders)


Frequency Modulation (FM)


Box 76 Folder 26-27 Articles and Clippings, 1928-1944, (2 Folders)


Box 76 Folder 28 Insignia, undated


Box 76 Folder 29 Census Map, 1950



Box 77 Folder 1 Receiver Development--Proceedings of the IRE, 1944


Box 77 Folder 2 Progress--Proceedings of the IRE, 1945-1946


Box 77 Folder 3 Bibliography, Articles and Publications, 1922-1947


Box 77 Folder 4 Publications, 1941-1950


Box 77 Folder 5 Correspondence--Armstrong to Pupin--Report Regarding 19 Years of Experiments in Lab,, 1933 April 3


Box 77 Folder 6 Draft of Paper on FM and Its Future Uses, undated


Box 77 Folder 7 "A Method of Reducing Disturbances In Radio Signaling by a System of Frequency Modulation"--Typewritten Copy with Corrections,, undated


Box 77 Folder 8 Articles and Clippings, 1935-1951


Box 77 Folder 9 General, 1939-1944


Box 77 Folder 10-11 Hostile Propaganda, 1941-1949, (2 Folders)


Box 77 Folder 12 Readings From Test, 1953 March 19-20


Box 77 Folder 13 FM Association (FMA)--Promotional Booklet, undated


Box 77 Folder 14 FMA Meeting Memoranda and Correspondence, 1949


Box 77 Folder 15 "FM Broadcasting"--Booklet by RCA, undated


Box 77 Folder 16 Clinic Papers, 1949


Box 77 Folder 17 Bibliography, 1945-1946


Box 77 Folder 18 FM Broadcasters, Inc.--Dick Dorrance--Correspondence, 1940-1945


Box 77 Folder 19-20 FMA Meeting, 1947-1948, (2 Folders)


Box 77 Folder 21 FMA Correspondence, 1947-1949


Box 77 Folder 22 Transmitter Advanced Development Section, 1935


Box 77 Folder 23-25 FM Survey Pulse Reports, 1950-1953, (3 Folders)


Testing


Box 77 Folder 26 Hourly Median Analysis Worksheets, Westhampton, 1947


Box 77 Folder 27 Calibration Curves--Receiver and Antenna Input, circa, 1948


Box 77 Folder 28 Analysis of Recordings on 44.1 and 92.1 Megacycles at Mt. Holly, New Jersey,, 1947 November



Box 78 Folder 1 Worksheets and Curves for Daily Analysis of Recordings of 92.1 and 44.1 at New London, CT,, 1947 October-November


Box 78 Folder 2 Original Curves, Daily Analysis of Westhampton Recordings, 1947 September-October


Box 78 Folder 3 Photostats of Daily Analysis of Westhampton Beach Recordings of W2XMN and W2XEA,, 1947


Box 78 Folder 4 Hourly Analysis of Recordings Made at Westhampton Beach, 1947


Box 78 Folder 5 Composite Analysis--Worksheets, Original Curves, Negatives, New London, CT, 1947 October 23-December 8, 1947 October



Box 79 Folder 1 Composite Curve from Daily Curve Analysis of Westhampton Beach Recordings and Curves Showing Ratio,, 1947


Box 79 Folder 2 Composite Curves and Analysis, 1949


Box 79 Folder 3 Reception Reports Including Reception through Thunderstorm--Includes Correspondence,, 1946-1949


Box 79 Folder 4 Comparison of Analysis Covering 2 Day Period and 31 Day Period at Westhampton,, 1947



Box 80 Folder 1 Field Intensities Beyond Line of Sight at 45.5 and 91 mcs, 1945


Box 80 Folder 2 Copy of Mt. Holly Log Book, 1949 January


Logbooks


Box 80 Folder 3 44.1 Mc and 93.1 Mc Field Strength Calibrations--Mt. Holly, New Jersey,1949 February


Box 80 Folder 4 W2XMN--F.G. Hargesheimer--Alpine, NJ, 1946-1948


Box 80 Folder 5-6 Unidentified, 1946-1949, (2 Folders)


Box 80 Folder 7 Southampton and Montgomery, 1950-1951


Box 80 Folder 8 Correspondence, 1947


Box 80 Folder 9 Data Sheets and Calibration Curves for Receivers Used at Mt. Holly and Record of W2XMN and W2XEA Transmitter Power,, 1949


Box 80 Folder 10 Worksheets for Analysis of Recordings Made at Mt. Holly, 1949 February-March


Box 80 Folder 11 Worksheets for Westhampton Beach Recordings Analyzed at Jansky and Bailey,, undated


Box 80 Folder 12 Godley, Paul--Correspondence, 1936-1950


Box 80 Folder 13 Gernsback, H.--"Can We Radio the Planets?,", 1927 February


Box 80 Folder 14 Friede, Herbert A.--FCC Testimony, 1947


Box 80 Folder 15 Friis, H.T.--"Noise Figures of Radio Receivers," Proceedings of the IRE, 1944 July


Box 80 Folder 16 Friis, R.W. and K.D. Smith--"An Unattended Broadcast Microwave Repeater For the TD-2 Radio Relay System,", 1951 November


Box 80 Folder 17 Flyer, G.W. and J.A. Worcester--"A New Armstrong Frequency Modulated Receiver,", 1939 July


Box 80 Folder 18 "A Noise Free Radio Receiver,", 1939 July


Box 80 Folder 19 Gavin, M.R.--"Frequency Modulator of An Oscillator,", 1948 September


Box 80 Folder 20 German Broadcasting--Bayerland, 1952 November (German)


General Electric



Box 81 Folder 1-4 Correspondence--Includes Blueprints and Photographs, 1930-1953, (4 Folders)


Box 81 Folder 5 Frequency Modulation Demonstration, 1939 April 5-7, 1939 April


Box 81 Folder 6-7 Instruction Booklets--Includes Letter fromWeir, 1953 December, undated, 1953, undated, (2 Folders)


Box 81 Folder 8 Report No. 19413--Investigation of Adjacent Channel Interference, 1931


Box 81 Folder 9 GE Contract and Correspondence, 1944-1946


Box 81 Folder 10 Correspondence with C.A. Priest, 1952


Box 81 Folder 11 Letter From Joseph Behr, 1953--Typed Telephone Conversation with Frank A. Gunther,, 1953


Box 81 Folder 12 Blueprints, 1951-1953


Box 81 Folder 13 "How W47A Did It; An FM Success Story,", 1941


Box 81 Folder 14 General Electric Review "First Frequency Modulation Radio Receivers For High Fidelity Reception,", 1939 September



Box 259 Folder 2 Frequency Modulation Receiver, CAT. 5100997--Piece of Actual Receiver Box Listing Parts, undated (Three Dimensional), undated



Box 80 Folder 21 General Radio Company--Correspondence, 1950


Box 80 Folder 22 Germanium Diodes--Applications, Page 5, 1950 March 1


Box 80 Folder 23 Gerth, and W. Scheppmann--"Investigations into the Propagation Phenomena of Ultra-Short Waves," undated (German), undated


Box 80 Folder 24 Gilfillan Bros.--Correspondence, Papers, Blueprints, 1950


Gilfillan Bros. Litigation


Armstrong v. Gilfillan Bros.


Box 80 Folder 25 Legal Correspondence and Memoranda, 1955


Box 80 Folder 26 Reporters Transcript of Proceedings, 1955 October 17


Box 80 Folder 27 Chart, undated


Box 80 Folder 28-29 Legal Documents, 1955, (2 Folders)


Box 80 Folder 30 Gillingham, George O.--Correspondence, 1953


Box 80 Folder 31 Gilman, G.W.--"Systems Engineering in Bell Telephone Laboratories,", 1953 January


Box 80 Folder 32 Gleissberg, W--"Predictions for the Coming Sunspot Cycle,", 1943


Box 80 Folder 33 Goldberg, H. and E.L. Crosby--"Series Made Crystal Circuits,", 1948 March


Box 80 Folder 34 Goldmark, Peter C.--FCC Proceedings, 1944


Box 80 Folder 35 Gouriet, G.G.--"High Stability Oscillator,", 1950 April


Box 80 Folder 36 Grammer, G.--"Wide Band Frequency Modulation in Amateur Communications,", 1940 January


Box 80 Folder 37 Granlund, J.--"Interference in Frequency Modulation Reception,", 1949 January


Box 80 Folder 38 Experiments and Results in Wireless Telephone, 1907 January


Graphs and Charts


Box 80 Folder 39 Hand drawn Graphs with Notes and Figures, 1946, undated, 1946, undated


Box 80 Folder 40 Unidentified Plotted Graphs, 1933--Paper, "Schenectady Transmitters," undated--"Comparison of Service Areas for Amplitude and Frequency Modulated Signals"--Chart by Hans Roder,, 1937 December


Box 80 Folder 41 Curves--Empire State to Haddonfield, NJ, 1933-1935


Box 80 Folder 42 Profile Graph--Alpine, NJ to Westhampton Beach, Long Island, undated


Box 80 Folder 43 Profile Graph--WGYN--New York City to Westhampton Beach, Long Island,, undated



Box 247 Folder 1 Data and Charts of Cathode Bias, 1946, undated, 1946, undated



Box 263 Map of Massachusetts--Rural vs. Urban Coverage--Microvolt per Meter Contour, undated (Photostat), undated


Box 263 Plots of Received Signal Strengths from Various FM Radio Stations at Multiple Transmission Frequencies, 1945 (Photostats), 1945


Box 263 Profile Map--Projected from W2AG, Yonkers to Westhampton Beach, undated



Box 264 Plots of Received Signal Strengths from Various Radio Stations at Multiple Transmission Frequencies, 1945 (Photostats), 1945



Box 81 Folder 15 Gresky, G.--"How Reflectors Work with Short Electric Waves,", 1928


Box 81 Folder 16 Greiser, T.J. and Paterson, A.C.--"A Broadband Transcontinental Radio Relay System,", 1951


Box 81 Folder 17 Grimes, David--"The Manufacturers Say,", 1941


Box 81 Folder 18 Gross Distributors, Inc.--Correspondence, 1940-1950


Box 81 Folder 19 Grosskopf, J.--"Antennas with Feedback," 1949 (German), 1949


Box 81 Folder 20 Guillemin, E.A.--"Criticism of Crosby Article on Frequency Modulation Noise Characteristics,", undated


Box 81 Folder 21 Guther, B.--"Westinghouse, Type B 940-960 Megacycle Communication Equipment,", undated


Box 81 Folder 22 Guy, R.and R.M. Morris--"NBC Frequency Modulation Field Test,", undated


Box 81 Folder 23 Guy, R.F.--"The Why and How of Frequency Modulation,", 1940


Box 81 Folder 24 FM and UHF, 1943-1944


Box 81 Folder 25 Hahnemann, W.--"On the Recent Development of the Machine Transmitter for Short Wavelengths,", 1928


Box 81 Folder 26 Hahnemann, W. and Gerth--"Common Frequency Broadcasting,", 1929


Box 81 Folder 27 Halstead, W.S.--"Multiple Program Transmission,", undated


Box 81 Folder 28 Hanson, O.B.--"Historic Highlights in Developing the Radio Broadcasting and Television Arts,", 1952


Box 81 Folder 29 Hasse, A.P.--"New One-Tube Limiter-Discriminator for FM,", 1950


Box 81 Folder 30 Hastings Instrument Co., Inc.--"Hastings-Raydist Indicator,", 1949


Box 81 Folder 31 Hathaway, J.L.--"High Frequency Pre-Emphasis,", 1939


Box 81 Folder 32 Hazeltine, A.--"Deflection Control Tubes,", 1936


Box 81 Folder 33 Heinl, Robert O.--Correspondence and Heinl News Service, 1948-1950


Box 81 Folder 34 Hennock, Frieda B.--Correspondence, 1948


Box 81 Folder 35 "Armstrong Stirs Radio Club with 35 Year Old FM Hoax Story,", 1948


Box 81 Folder 36 Hillard, V.--Radio Telephones Guide the "Blitz Buggies,", 1944


Box 81 Folder 37 Hickman, C.N.--"Sound Recording on Magnetic Tape,", 1937


Box 81 Folder 38-39 High Fidelity--Clippings, 1953-1954, (2 Folders)


Box 81 Folder 40 Hill, D.R.--"New Castle Design Improves Tube Reliability,", 1951


Box 81 Folder 41 Hogan, John--Correspondence, Articles, Blueprints, 1939-1949


Box 81 Folder 42 Hirschmann, Ira--Correspondence, 1949-1953


Box 81 Folder 43 Hoover, Herbert--"Engineers"--Speech, 1951


Box 81 Folder 44 Holcomb, P.--"Basic Principles of the Varioplex Telegraph,", 1940


Hoffman Radio Corporation Litigation


Armstrong v. Hoffman Radio Corporation



Box 82 Folder 1 Affidavits, 1954


Box 82 Folder 2 Correspondence, 1954-1956


Box 82 Folder 3 Legal Documents, 1956


Box 82 Folder 4 Agreement and General Release and Covenant Not to Sue, 1956-1957


Box 82 Folder 5 Charts, undated


Box 82 Folder 6-7 Horne, Josh (WFMA)--Correspondence, 1949-1951, (2 Folders)


Box 82 Folder 8 Huber, G.H.--"A15-KC Carrier Program Channel,", 1949


Box 82 Folder 9 Hughes, J.W.--"Stabilizing Direct-Voltage Supplies,", 1947


Box 82 Folder 10 Hund, August--Correspondence and Clippings, 1941-1945


The Institution of Radio Engineers (IRE)


Box 82 Folder 11-14 Correspondence, 1936-1952, (4 Folders)


Box 82 Folder 15 Australia--Correspondence and Articles, 1950-1954


Box 82 Folder 16 Insurance Matters--General, 1947-1952


Box 82 Folder 17 International Business Machines (IBM)--General, 1939-1954


Box 82 Folder 18 Interdepartment Radio Advisory Committee (IRAC)--General, 1944-1945


Box 82 Folder 19 International Telecommunications Conference, Atlantic City, 1947


Box 82 Folder 20 International Telephone and Telegraph Corporation--General and Litigation,, 1938-1953


Box 82 Folder 21-22 Jansky and Bailey--Statements and Reports, 1944-1953, (2 Folders)


Box 82 Folder 23 Jaffe, David L.--Articles, 1938-1940


Box 82 Folder 24 Jefferson, H.--"Filter Design Tables Based on Preferred Numbers (High Pass Filters),", 1946


Jett, E.K.



Box 83 Folder 1 General, 1946-1951


Box 83 Folder 2 "Radio Interference Problems from Operation of Electro-Medical Apparatus,", 1941


Box 83 Folder 3 Statement Before Committee on Appropriations, House of Representatives,, 1948


Box 83 Folder 4 Johnson, Edwin--General, 1949-1950


Box 83 Folder 5 Johnson, J.B.--"Thermal Agitation of Electricity in Conductors,", 1928


Box 83 Folder 6 Johnson, J.B. and F.B. Llewellyn--"Limits to Amplification,", 1934



Box 82 Folder 25 Johnston, R.and A.G. Ratz--"A Graphical Method for Flip-Flop Design,", 1953


Box 82 Folder 26 Jolliffe, C.B.--General, 1926-1947


Box 82 Folder 27 Jones, Robert F.--General, 1950


Box 82 Folder 28 Jones, Thomas M.--Armstrong Conquers Radio Static in Columbia's Research Laboratory,", 1939


Box 82 Folder 29 Journal of the Society of Motion Picture Engineers, Articles, 1938-1940


Box 82 Folder 30 Kalmus, H.P.--"Some Notes on Superregeneration with Particular Emphasis on its Possibilities for Frequency Modulation,", 1944


Box 82 Folder 31 Keall, O.E.--"Interference in Relation to Amplitude, Phase and Frequency Modulated Systems,", 1941


Box 82 Folder 32 Keen, A.W.--"Linear Saw Tooth Generators,", 1948


Box 82 Folder 33 Kilgour, C.E. and Glessner, J.M.--"Diode Detection Analysis,", 1933


Box 82 Folder 34 Kiplinger Magazine Articles and Correspondence, 1950


Kirke, H.L.


Box 82 Folder 35 "Frequency Modulation: BBC Field Trails,", 1936


Box 82 Folder 36 "An Experimental Investigation of Car Ignition Interference,", 1947



Box 83 Folder 7 Klappenbach, W.--Correspondence, 1941-1953


Box 83 Folder 8 Municipal Signal Engineer Articles, 1941


Box 83 Folder 9 Klipsch, Paul--Articles and Correspondence, 1941-1953


Box 83 Folder 10 Lafferty, J.M.--"Lanthanum Boride Cathodes,", undated


Box 83 Folder 11 Landon, V.D.--Articles, 1936-1941


Box 83 Folder 12 Lang, F.--"The System with Frequency Multiplication in Iron Core Transformers,", undated


Box 83 Folder 13 Laval University--Correspondence, 1948-1952


Box 83 Folder 14 Lawson, D.I.--"Frequency Modulation-Its Production by Phase Shifting the Side Bands of an Amplitude Modulated Wave,", 1940


Box 83 Folder 15 Lee, Robert E.--Correspondence, 1953-1954


Box 83 Folder 16 Levy, M.--"Power Pulse Generator,", 1946


Box 83 Folder 17 Lemke, William--Articles and Correspondence, 1947-1949


Box 83 Folder 18-19 Armstrong's Licensed FM Broadcasters--Lists, 1948, (2 Folders)


Laboratory--Notes--Includes Early Notes



Box 89 Folder 4 Address Book, undated


Box 89 Folder 5-7 Checklists (Things to be Done), 1934-1948, (3 Folders)


Box 89 Folder 8 Plot Graph--"Combined Rectified Current Characteristic of Circuit with Square Law Rectifiers,", 1927 January 21


Box 89 Folder 9 Jury Service--Photostat of Stub from, 1949 October


Box 89 Folder 10 Citation to the Medal of Merit, 1946-1947


Box 89 Folder 11 Copy of Longhand Personal Notes of Armstrong From Two Yellow Sheets (Multiplexing),, 1951


Box 89 Folder 12 Memorandum Regarding Palo Alto Investigation by Hammer and Schwartz, 1929


Box 89 Folder 13 Correspondence--Subjects Include FM Royalty Waiver During World War II, Franklin Medal Award and Alpine, NJ,, 1934-1953


Box 89 Folder 14 Draft of Armstrong Portion of a Publication--Chapter 12 with Corrections,, undated


Box 89 Folder 15 Drafts and History for "History of 1BCG" and "A Forgotten Chapter of Radio History: Marconi's Second Great Discovery…,", undated


Box 89 Folder 16 Telegram from R.A. Weigant Regarding "Oscillion," 1916 February--Note from Charles E. Apgar, 1947 October, 1916, 1947 October


Box 89 Folder 17 Correspondence--Notes Regarding FM Blueprints--IRE Minutes--Memoranda Regarding Stamped Confidential--Drawings,, 1934-1943


Box 89 Folder 18 Letters from Cleveland Board of Education, 1940-1945


Box 89 Folder 19 Carbon Copies of Correspondence, 1953-1954


Box 89 Folder 20 Copy of Letter to John R. Russell, 1936 July 23


Box 89 Folder 21 Papers Regrding VHF Maritime Telephone Communications--Paper Number 5, URSI-IRE Meeting, Washington, DC, 1952, undated, 1952, undated


Box 89 Folder 22 Photostat of Notebook of Field Trip to Atlanta, Mobile, Montgomery, by McMann and Hargesheimer--Includes Log,, 1951-1952


Box 89 Folder 23 List of Broadcast Receiver Licenses--Bills From REL and NY Telephone Co.--Promotional Material of Regency, REL, Browing, Bogen and Radio Craftsman, 1948-1949, undated, 1948-1949, undated


Box 89 Folder 24 Correspondence Regarding the Retraction Radio Broadcast Magazine Made Against Armstrong--Written by J.H. Morecroft,, 1926


Box 89 Folder 25 Shaughnessy Letter and Photographs of Yonkers and Alpine Masts, 1916, undated, 1916, undated


Box 89 Folder 26 Telegraph from Kingston, Jamaica from "Tom"--Includes a Government of Jamaica Certificate of Efficiency for Ruel Phillip Samuels,, 1937


Box 89 Folder 27 Clippings and Notes Regarding the Audion and Regenerative Circuit, circa, 1920


Box 89 Folder 28 "Circuit of Blah Eliminator"--Drawing, 1946 February 26


Box 89 Folder 29 "A New Method of Receiving Short Wave Length Signals"--Typed Draft with Notes,, undated


Box 89 Folder 30 Raised Print of Newspaper Pages (Hebrew, German), 1922



Box 94 Folder 1 Square Wave Clamper, Improving Signal to Noise Ratio by Pulsing, Square Waving Two Signals--Drawings and Notes,, 1950-1953


Box 94 Folder 2 Notes on Reproduction of Radio Broadcast Program Reception in Rocky Mount, North Carolina,, 1950-1951


Box 94 Folder 3 Analysis of Energy Distribution of Noise in Frequency and Amplitude Modulated Receiver--Unidentified Notes, 1925, 1935, 1941, 1925, 1935, 1941


Box 94 Folder 4 Technical Data--Rye Beach, New Hampshire, 1946


Box 94 Folder 5 Original Sketch for A.G. Predistorter, 1936


Box 94 Folder 6 Outside of Some Work Carried out in 1935-1936--Includes Small Notebook,, 1935-1936


Box 94 Folder 7 Original Working Diagrams, Armstrong to J.F.S., For Making Up Panels,, 1930-1942


Box 94 Folder 8 Laboratory Notebook--Special Apparatus Division, Ultra High Frequency Transmitter Development, Harry Sadenwater,, 1930-1942


Box 94 Folder 9 Frequency Swings and Distortion Measurements--Includes Graphs and Checklists,, 1931-1941


Box 94 Folder 10 Notes Regarding Some Experiments Not Related to FM, 1932-1933


Box 94 Folder 11 Improved Wireless Detecting and Receiving Means for Continuous Wave Systems, Resistance and Reactions of Telephone Receivers--Notes, Drawings and Blueprints,, undated


Box 94 Folder 12 Analysis of Audion as Detector of Electrical Oscillations, Highly Directional Receiving Antennas System--Notes, Drawing,, undated


Box 94 Folder 13 Analysis of Audion, Notes on Regeneration Type K, undated



Box 224 Folder 8 Compensation System with Schematic Drawings--Speech "Things to Come…" with Drafts--Instructions for Marconi Operators, 1915, 1935, 1944-1946, 1952, 1915, 1935, 1944-1946, 1952



Box 83 Folder 20 Lindredge, C.D.--General, 1912-1926


Link Litigation


Box 83 Folder 21 Armstrong v. Link, Fred M.--General, 1950-1955


Box 83 Folder 22 Litigation Matters--Clippings, 1949


Box 83 Folder 23 Loest, W.--"Phase Modulation,", undated


Box 83 Folder 24 Long Island Forum--"Island's Contribution to FM,", 1940


Loughlin, B.D.


Box 83 Folder 25 "Performance Characteristics of FM Detector Systems,", 1948


Box 83 Folder 26 "The Theory of Amplitude Rejection in the Ratio Detector,", 1952


Box 83 Folder 27-28 Lowell Institute Cooperative Broadcasting Council (WGBH), 1951-1953, (2 Folders)


Box 83 Folder 29 Lovell-Foot, J.B.--"Diode Detectors: Conditions for Distortionless Operation,", 1934


Box 83 Folder 30 McArthur, E.D.--Letter on "L"--Cathode, 1951


Box 83 Folder 31 McCormack, Alfred--General, 1953-1954


McKenzie, A.A


Box 83 Folder 32 "Fremodyne FM Receivers,", 1948


Box 83 Folder 33 "Let's Sell FM Antennas,", 1946


Marconi, G.


Box 83 Folder 34 Articles, 1901-1926


Box 83 Folder 35-38 General--Includes Photographs, 1911-1956, (4 Folders)


Box 83 Folder 39 Articles, 1889-1924


Box 83 Folder 40 Glace Bay (Nova Scotia) Photographs, 1902-1907



Box 84 Folder 1 Cape Cod (Massachusetts) Photographs, 1902-1942


Box 84 Folder 2 Tests--Photographs, undated


Box 84 Folder 3 "Marconi's 2nd Great Discovery and the Franklin Beam"--For Possible Publication,, 1948-1953


Box 84 Folder 4 "Marconi's Quest of Radio"--Russia's Claim to Inventor of Radio, 1946


Box 84 Folder 5 Letter to Editor--"Soviet Radio Claim Examined"--"Challenge on Behalf of Physicist Popov to Marconi's Title Evaluated,", 1952


Box 84 Folder 6 Marconi's Wireless Telegraph Co., Ltd.--Publications and Correspondence,, 1942-1953


Box 84 Folder 7 Marique, J.--"Notes on the Theory of Diode Rectification,", 1935


Box 84 Folder 8 Marks, M.--"Cascade Phase Shift,", 1946


Box 84 Folder 9 Maurice, D. and J.T. Slaughter--"FM Reception-Comparison Tests Between Phase Discriminatory and Ratio Detectors,", 1948


Box 84 Folder 10 Megaw, E.C.S.--"Scattering of Electromagnetic Waves by Atmospheric Turbulence,", 1950


Box 84 Folder 11 Meissner, A.--"The Propagation of Electric Waves Over the Earth,", 1924


Box 84 Folder 12 Meissner Manufacturing Division--Correspondence, 1950


Box 84 Folder 13 Melman, I.J.--Articles, 1950


Box 84 Folder 14 Milstein, V.N.--"Detecting Frequency Modulated Oscillations,", undated


Box 84 Folder 15 Mimno, H.R.--"The Physics of the Ionosphere,", 1937


Box 84 Folder 16 Morehouse, Terry--General, 1949


Box 84 Folder 17 Morrison, J.F.--"A New Broadcast Transmitter Circuit Design for Frequency Modulation,", 1940


Box 84 Folder 18 Mortley, W.S.--Frequency Modulated Quartz (FMQ), 1951


Motorola, Inc. Litigation


Armstrong v. Motorola, Inc.


Box 84 Folder 19 Supplementary Instructions to "Research" Line Instruction Manual, 1951


Box 84 Folder 20 Diagrams, 1948-1950


Box 84 Folder 21 Memoranda for E.M. Armstrong, Executrix, on Motion to Substitute her as Plaintiff,, 1954


Box 84 Folder 22 Data for Brief and Reply Brief, 1955


Box 84 Folder 23 Data, Extra Copies, Papers Not Used, 1954-1955


Box 84 Folder 24 Briefs, undated


Box 84 Folder 25 Findings of Fact and Comments on Findings of Fact, undated


Box 84 Appendix to Brief for Defendant-Appellant--Volumes I and II



Box 85 Appendix to Brief for Defendant-Appellant--volumes III and IV


Box 85 Transcript of Proceedings--Number 1 through 26, 1961 (volume), 1961



Box 86 Transcript of Proceedings--Number 27 through 56, 1961 (volume), 1961



Box 87 Transcript of Proceedings--Number 59 through 70, 1961-1962 (volume), 1961-1962


Box 87 Folder 1 Multiplex System--Armstrong and Bose--General, 1948-1952


Box 87 Folder 2 Multiplex Development Corporation--Articles, 1950-1951


Box 87 Folder 3-5 National Association of Broadcasters--General, 1935-1953, (3 Folders)


The National City Bank of New York


Check Stubs and Accompanying Register--Laboratory Account


Box 87 1935 July 28 through 1944 August 17, 1935 July 28, 1944 August 17



Box 88 1944 August 17 through 1949 December 30, 1944 August 17, 1949 December 30


Box 88 Folder 1 National Defense Research Committee--Correspondence, 1940-1953


Box 88 Folder 2 National Patent Planning Commission--Correspondence and Reports, 1943-1944


Box 88 Folder 3 National Television System Committee--Minutes of the Second Joint Meeting of Panel 5 and 6,, 1940 December 20


Box 88 Folder 4 Nelson, J.R.--"Grid Circuit Power Rectification,", 1930


Box 88 Folder 5 "Some Notes on the Grid Circuit Diode Rectification,", 1930


Box 88 Folder 6 Electronics "New High Frequency Allocations,", 1936 June


Box 88 Folder 7 "NY-Boston Microwave,", 1948 July


Box 88 Folder 8 City of New York (WNYC-FM)--Correspondence, 1946-1953


Box 88 Folder 10 "Devise New System of Broadcasting,", 1927 May 14


Box 88 Folder 11 "New Radio Method Studied by Board,", 1927 May 15


Box 88 Folder 12 Editorial, "Freedom of the Airwaves,", 1950 March 18


Box 88 Folder 13 "Predictions of Radio Leaders,", 1936 January


Box 88 Folder 14 Nicholson, M.G.--"Comparison of Frequency and Amplitude Modulation,", 1947 July


Box 88 Folder 15 Noble, D.M.--"The History of Frequency Modulation as Applied to Radio Telephone Communications," Submitted for Electrical Engineering Seminar, Massachusetts Institute of Technology,, 1938 January 22


Box 88 Folder 16 "Frequency Modulations Fundamentals,", 1939 August


Norton, Kenneth



Box 89 Folder 1 Excerpts From the Official Report of Proceedings Before the FCC, 1944


Box 89 Folder 2-3 Technical, 1940-1948, (2 Folders)



Box 296 Folder 2 Notebooks--Schematics and Calculations, circa 1912-1913

Gift of Steve McGrath



Box 89 Folder 31 Nowak, A--"FM Detection with USW Radio Receivers," 1950 December (German), 1950 December


Box 89 Folder 32 Olson, H.F.--"Frequency Range Preference for Speech and Music,", 1947 July


Box 89 Folder 33 Oman, N.J.--"A New Exciter Unit For Frequency Modulation Transmitters,", 1946 March


Box 89 Folder 34 Orchard, H.J.--"Synthesis of Wideband Two-Phase Networks,", 1950 March


Packard-Bell Co. Litigation


Armstrong v. Packard-Bell Co.


Box 89 Folder 35 Pleadings, 1956


Box 89 Folder 36 Data, Extra Copies, Papers Not Used, 1954


Box 89 Folder 37 Legal Documents, 1954-1956


Box 89 Folder 38 Agreements and General Release and Covenant Not to Sue, 1956


Box 89 Folder 39 Letters and Memoranda, 1955-1956


Patents



Box 126 Folder 1 Armstrong--Wireless Receiving Systems for Continuous Waves, 1913-1914


Box 126 Folder 2-4 Armstrong--Radio Signaling Systems--Original Drawings, 1931-1937, (3 Folders)


Box 126 Folder 5-6 Armstrong v. R.C.A.--Legal Documens, 1948-1954, (2 Folders)


Box 126 Folder 7 Duplicate exhibits, 1949 October


Box 126 Folder 8 Harry Ferguson and Harry Ferguson Inc. v. Ford Motor Company, 1950 April 21


Box 126 Folder 9 Armstrong--Wireless Receiving System, 1913 October 29


Box 126 Folder 10 George, Ralph W. (for R.C.A), Receiving Means, 1933-1936


Box 126 Folder 11 Non-Armstrong Patents H through W, 1903-1911


Box 126 Folder 12 Legal Documents-- Bishop, Nathaniel, Carrier Operated Control System for Limiting Amplifiers, circa, 1941


Disclosures--Armstrong


Box 126 Folder 13 Method and Apparatus for Electrical Tuning--Original Drawings, 1914-1916, undated, 1914-1916, undated


Box 126 Folder 14 Improving the System for Frequency Modulated Wave, undated


Box 126 Folder 15 System for Transmitting and Receiving in Radio Communication by Phase Modulated Wave,, undated


Box 126 Folder 16 Charts and Graphs, undated


Box 126 Folder 17 Armstrong v. United States of America--Depositions, 1924


Box 126 Folder 18 Demarest, Charles S.(for ATandT), Signaling System,1931


Box 126 Folder 19 Correspondence from Wingood Realty Co. Inc.,1914-1916


Box 126 Folder 20 Pupin and Armstrong--Disclosure Regarding High Resistance Receiving Antenna,, undated


Box 126 Folder 21 White, Langner, Stevens and Parry concerning McCaa Wireless Signal Patents-September,, 1922


Box 126 Folder 22 Tesla, Nicola--Method and Apparatus for Controling Mechanism of Moving Vessels or Vehicles,, 1908


Box 126 Folder 23 DeForest v. Meissner v. Armstrong v. Langmuir--Exhibit 6-J, Newspaper Articles,, 1913


Box 126 Folder 24 License Agreement--Armstrong Broadcast Receiving Set, 1940s


File Wrappers--Armstrong


Box 126 Folder 25-26 Signaling System, 1921-1922, (2 Folders)


Box 126 Folder 27 Receiving High Frequency Oscillations--Original Notes and Drawings,, 1919-1920


Box 126 Folder 28-29 Wave Signaling System--Original Notes and Drawings, 1922-1927, (2 Folders)


Box 126 Folder 30 Square Saw Recitification with Square Root Reduction--Original Drawing,, 1927



Box 127 Folder 1 Application--Armstrong Continuous Waves, 1914-1916


Box 127 Folder 2 United States Patents for R.A. Fessenden, and J. A. Flemming, 1905


Box 127 Folder 3 French and British Patents, 1914-1921


Disclosures


Box 127 Folder 4 Hinton, N. P.--Improvements to Signaling Systems,1922


Box 127 Folder 5 Armstrong--Wireless Detecting and Transmission for Continuous Wave Systems,, undated


Box 127 Folder 6 Correspondence--Nolte, Albert C.--Handwritten Notations, 1932-1941


Box 127 Folder 7 Short Wave Distortion Notes, undated


Box 127 Folder 8 Approval--Armstrong Signaling System, 1922 December


Box 127 Folder 9 Transparency--Brake by M. J. During, et. al., 1929 August


Box 127 Folder 10 Armstrong, Foreign and Domestic Patents and Disclosures, 1915-1918


Litigation


Box 127 Folder 11 Correspondence--Non-Armstrong Claims and Patents, 1893-1928


Box 127 Folder 12 Notice to Other Infringers, 1948


Box 127 Folder 13 Multiplexing Application Case--Original Drawings, 1949-1952


Box 127 Folder 14 Multiplex Receiver Application--Drafts, Notes and Drawings, 1953


Box 127 Folder 15 Brown, W. J., Patents, 1950 October


Box 127 Folder 16 Armstrong--Radar System--Handwritten Notes, 1956


Box 127 Folder 17 Application--Armstrong Multiplex System, 1952-1956 (German), 1952-1956


Box 127 Folder 18 Dome, Robert B. for General Electric--Frequency Modulation, 1929-1933


Box 127 Folder 19 Day, Albert V.T.--Carrier Wave Signaling, 1930


Litigation


Box 127 Folder 20 Bishop, Nathaniel Case, undated


Box 127 Folder 21 Armstrong v. United States of America, 1925-1928


Box 127 Folder 22 Patent Law Documents, 1912-1952


Box 127 Folder 23 Armstrong--Radio Signaling, 1935


Box 127 Folder 24 Armstrong Notes on Frequency Multipliers in Radio Signaling, undated


Box 127 Folder 25 Demarest, Charles S. (for ATand T)--Signaling System Claim, 1936


Box 127 Folder 26 Armstrong v. Maschinen Aktiengesellschaft Fuer Drahtlose Telegraphie Agreement, 1916 (German), 1916


Box 127 Folder 27 Drawing of Amplifying Circuit by Armstrong, 1930


Box 127 Folder 28 Unknown Case Summary, undated


Litigation


Box 127 Folder 29 Patents and Correspondence Concerning V.T. Day--High Frequency Signaling and Multiplex Signaling System,, 1922-1925


Box 127 Folder 30 Early Interference Cases, 1931-1950


Box 127 Folder 31 Loftin--Testimony, 1925 October


Box 127 Folder 32 Holden, W. H. T., et. al., System of Photography Involving Frequency Modulation,, 1932


Box 127 Folder 33 Sanders, M.L.--Information Distribution System, 1942


Box 127 Folder 34 Day, James Robert--Specification and Agreement for Frequency Modulation Detector,, 1949


Litigation


Box 127 Folder 35 Partial Document Concerning Armstrong Radio Receiving System, undated


Box 127 Folder 36 Memorandum for Conference at "Mr. Bucher's" Office, 1932 May 3


Box 127 Folder 37 Correspondence--Armstrong to Pratt, Harden, Executive Office of the President,, 1952 November


Box 127 Folder 38 Non-Armstrong Patents on Frequency Modulation for Case # 73, 1939-1952


Box 127 Folder 39 General Patents, 1920-1956


Box 127 Folder 40 Original Notarized Drawings and Notes, circa, 1915


Box 127 Folder 41 Gage, Edward G.--Method for Operating Thermionic Apparatus, undated


Box 127 Folder 42 Correspondence-- Armstrong from M. L. Sanders concerning Informative Distribution System Patent,, undated


Box 127 Folder 43 Armstrong--Radio Signaling Patent with Official Seal, 1933 January 24


Box 127 Folder 44 Correspondence-- Dubilier, William of Radio Patent Corporation to Armstrong Regarding Radio Signaling System Interference,, 1934


Box 127 Folder 45 Drawing of Baffle for Reducing Interference, undated


Box 127 Folder 46 Letter detailing the sale of Radio Equipment by Mr. Wallace and Mr. Knight to the United States Fruit Company,, undated



Box 128 Folder 1-2 Bills, Statutes and Laws Concerning Patents, 1940-1955, (2 Folders)


Box 128 Folder 3-4 Patent Interference--Armstrong v. Hansell, 1941-1949, (2 Folders)


Box 128 Folder 5 Patents Concerning Regenerative Circuit Case, undated


Box 128 Folder 6 Patent Assignments--Carrier Operated Control System for Limiting Amplifiers, circa, 1940


Box 128 Folder 7 Correspondence on Secrecy Order on Certain Patents, 1935-1953


Litigation


Box 128 Folder 8-9 Plump v. Wheeler v. Armstrong and Wheeler v. Armstrong v. Tunick, 1941-1947, (2 Folders)


Box 128 Folder 10 Armstrong v. Crosby.,1939-1950


Box 128 Folder 11 Armstrong v. Conrad, 1958


File Wrapper


Box 128 Folder 12 Beverage, Harold H.--Radio Communication, 1928-1937


Box 128 Folder 13 Day, Albert V. T.--Carrier Wave Signaling, 1930-1939


Box 128 Folder 14 Deerhake, Franklin M.--Frequency Conversion System, 1940-1941


Box 128 Folder 15 Demarest, Charles S.--Related Patents, 1905-1936


Box 128 Folder 16 George, Ralph W.--Receiving Means, 1933-1940


Box 128 Folder 17 Lindenblad, Nils E.--Modulation, 1933-1936


Box 128 Folder 18 Noble, Daniel E.--Radio Receiver Circuit, 1941-1944


Box 128 Folder 19 Pieracci, Roger J.--Stabilized Frequency Modulation System, 1940-1941



Box 129 Folder 1-2 Patents--General, 1924-1940, (2 Folders)


Box 129 Folder 3 "Wright and Smith File,", 1903-1924


Box 129 Folder 4 Specifications and Disclosures-Includes a Handwritten Disclosure and Drawings by Henry Joseph Round,, 1940s


Box 129 Folder 5-7 Specifications, 1917-1934, (3 Folders)


Box 129 Folder 8 License Agreements--Armstrong--Broadcast Transmitter, Mobile and Miscellaneous Communication, and Broadcast Receiving Set,, 1940s


Box 129 Folder 9 List of Armstrong Patents from 1931-1951, undated, 1931-1951, undated


Box 129 Folder 10 Armstrong--Frequency Modulation System, 1940


Box 129 Folder 11 Armstrong--Radio Transmitting System, 1937


Litigation


Box 129 Folder 12 Langmuir v. Armstrong--Exhibit "A,", 1913 January


Box 129 Folder 13 DeForest v. Meissner v. Armstrong v. Langmuir--Exhibits, Handwritten Notes Regarding Audion Improvements, Photographs,1913-1918


Box 129 Folder 14 Pupin and Armstrong v. Meissner--Exhibit "B"--Low Frequency Oscillation Circuit,, 1915 March 16


Correspondence


Box 129 Folder 15 Hughes, Charles E. to Armstrong Regarding DeForest Case, 1928


Box 129 Folder 16 Lee De Forest and W.T. Russell discussing a New York Times Letter to the Editor about Pupin and Armstrong,, 1934


Box 129 Folder 17 George Albee to Armstrong Concerning Quality of Alpine Radio Broadcasts,, undated


Box 129 Folder 18 Drawings--Notarized Originals, 1914-1927, undated, 1914-1927, undated


Box 129 Folder 19 Drawings, Originals, 1929, 1943, undated, 1929, 1943, undated


Box 129 Folder 20 Disclosure and Original Drawings for Relay for Meriden Mountain, 1939


Box 129 Folder 21 New York Telegram "Sarnoff Talks to Electric Light Men,", 1926 May 22


Box 129 Folder 22 Index Cards--Cards Detail Broadcast Station, Operating Power, Call Letters, Date of Agreement with Armstrong and Royalties, circa, 1940-1950


Box 129 Folder 23 Checkbook--Chase National Bank, 1922-1923


Box 129 Folder 24 Stock Transfer Stamps and Delivery Tickets, 1929


Box 129 Folder 25 Tape Record Using Static Balance, 1927 March 3


Box 129 Folder 26 Lists of Visits, Payments, Workload, etc., 1932-1935


Box 129 Folder 27 Correspondence--A.G. Davis of Owen D. Young regarding Westinghouse and Armstrong Deal,, 1920 October 2


Disclosures and Applications, Armstrong


Box 129 Folder 28 A New Method of Electrical Selection--Original Drawings, 1926 March 8


Box 129 Folder 29 Method for Applying Tuning to Wave Form to Radio Telephony --Typed and Handwritten with Original Drawings,, 1927 January 28


Box 129 Folder 30 System Reduced to Practice at Hartley Research Laboratory, 1927 February 4


Box 129 Folder 31 Improvements to Earlier Patent by Pupin and Armstrong--Handwritten with Original Drawings, circa, 1932


Box 129 Folder 32 Constant Frequency Transmitter--Original Drawings, 1938-1939


Box 129 Folder 33 Method and Means for Transmitting Frequency Modulated Signals, 1940


Box 129 Folder 34 Frequency Modulated Ranging System to Submarine Detection and Location,, 1941


Box 129 Folder 35 "Note on the Value of Resistance to be Used in Series with the Rectifier,", 1927 February 22


Box 129 Folder 36 Affidavit--Adams, R. Morton, William H. Davis, and Willis H. Taylor, Describing Armstrong Demonstration and a Lost Circuit Diagram for the Super Regenerative Circuit,, 1926 April 27


Correspondence


Box 129 Folder 37 Armstrong to Nolte Regarding Sketch,1929


Box 129 Folder 38 Eastham, Melville to Armstrong Regarding Filters, 1934


Box 129 Folder 39 Sadenwater, Harry to R. S. Holmes--Regarding the Merits of Amplitude vs. Frequency Modulated Waves in Television,, 1940 January 12


Box 129 Folder 40 Baker, W. G. R. of General Electric to W. M. Angus--Regarding the Number of Tubes in Their 116 Receiver,, 1941 November 26


Box 129 Folder 41 Armstrong to R.C.A. Regarding the Termination of Their Case, undated


Correspondence with Zenith Radio Station


Box 129 Folder 41 Originals, 1938-1949


Box 129 Folder 42 Duplicates, 1939-1948


Box 129 Folder 43 Other Zenith Materials-Clippings, Photographs, List of Royalty Payments,, 1940s


Box 129 Folder 44 Application submitted by NBC to the United States Government for a High Frequency Broadcast Station Permit,, 1939 July 13


Box 129 Folder 45 RCA Docket 8799--Letter to Mr. Martin Describing Noise Reduction Invention,, 1934 May 23


"Important FM Records"


Box 129 Folder 46 Record of Discovery Notebook Detailing Experiments Taking Place on November 27, 1920 and May 10, 1933, 1920-1933, November 27, 1920, 1933, 1920-1933


Box 129 Folder 47 Documents Relating to "Important M. Records" File, 1932-1943


Box 129 Folder 48 Photographs of John Thompson, Maurice Willey, Willie Biron, and Alpine Radio Station, 1940, undated, 1940, undated


Box 129 Folder 49 Disclosures, undated


"High Power File"


Correspondence



Box 130 Folder 1 Godley, Paul to Armstrong Regarding Consultation Services, 1936-1937


Box 130 Folder 2 RCA to Armstrong Regarding Model AVT-1 Radio Traffic Control Transmitter--Includes Blueprints,, 1936-1938


Box 130 Folder 3 Law Offices of Horace L. Lohnes, to Armstrong Regarding 140 foot Antenna,, 1937


Box 130 Folder 4 John E. Lingo and Sons Inc. and Armstrong Regarding the Purchase, Installation and Specifications of Turnstile Antennas at Alpine--Includes Blueprints,, 1937-1942


Box 130 Folder 5 Rockland Electric to Armstrong Regarding Service--Includes agreement, 1942--Usage and Tax Exemption Proposal Documents,, 1937-1942


Box 130 Folder 6 Correspondence, 1937-1938


Box 130 Folder 7 Parts Lists for Armstrong Transmitter, 1938 January 26


Box 130 Folder 8 Blueprints, 1935-1937


Box 130 Folder 9 Records of Disturbance for W2XMN and WQXR, 1938-1939


Box 130 Folder 10 Westinghouse Products, 1936-1938


Box 130 Folder 11 Co-Axial Transmission Line, 1937


Box 130 Folder 12 Drawings and Notes--Original Drawings, undated


Box 130 Folder 13 Notes on Radio Coverage in the Los Angeles and San Francisco Bay Area--Includes Correspondence,, 1937


"Early Notes, Test and Patent Specifications"


Box 130 Folder 14 Original Drawings, 1932-1939


Box 130 Folder 15 Drawing, undated


Box 130 Folder 16 Columbia University Announcement Concerning Armstrong's Test of FM Radio at the Empire State Building,, 1935 April 25


Correspondence


Box 130 Folder 17 Nolte, A.C. and Armstrong Regarding Patent Disclosures, 1932-1936


Box 130 Folder 18 President of Stern and Company to E. A Tracey, 1939 April 18


Box 130 Folder 19 Armstrong, System for Differentiating between a Single Frequency and a Varying Frequency without the Production of Transient Oscillations--Handwritten with Original Drawings,, 1943


"Foreign Licenses, Broadcast Transmitters Manufacturing"


Box 130 Folder 20-22 Correspondence, 1935-1948, (3 Folders)


Box 130 Folder 23 Maps and Photographs Concerning Coverage in Buenos Aires, Argentina, circa, 1941


Box 130 Folder 24-25 Canadian Correspondence, 1938-1947, (2 Folders)


Box 130 Folder 26 Canadian Radio License Agreement, 1940 January 1


Correspondence


Box 130 Folder 27 Regenerative Transmitter Ranges --Includes QSL Cards and Photographs,, 1926


Box 130 Folder 28 United States War Department, 1942-1943


Box 130 Folder 29 Bird, Lionel Thomas to Armstrong Regarding Patent Dispute, 1945-1947


Box 130 Folder 30 Air Materiel Command--Includes Contract, 1946-1948


Box 130 Folder 31 Publications Noting Awards Given to Armstrong, 1940-1951


Alpine, New Jersey--Stations W2XMN and KE2XCC


Box 130 Folder 32 Confirm Receipt of Transmission Cards--QSL Cards, 1925-1926


Box 130 Folder 33 Discontinuation of Low Band W2XMN, 1949


Box 130 Folder 34 General Correspondence, 1949-1950


Box 130 Folder 35 Transmission Conditions, 1949-1950


Box 130 Folder 36-37 Symphony Hour, 1949-1950, (2 Folders)


Box 130 Folder 38 Programming Correspondence, 1942-1944


Box 130 Folder 39 Bills for Programming, undated


Box 130 Folder 40 Armstrong, Signaling System, 1922


Box 130 Folder 41 Non-Armstrong Patents, 1893-1920


Box 130 Folder 42 "Shaughnessy's Notes" on De Forest v. Armstrong Case, 1921


Box 130 Folder 43 Exhibits, 1949


Box 130 Folder 44 Legal Documents Concerning Settlements, 1953


Box 130 Folder 45 Charts and Graphs, 1939


Box 130 Folder 46 Signal Testing Note Cards, undated


Box 130 Folder 47 Photographs of Sine and Square Waves, 1951


Box 130 Folder 48 Photographs of Radio Equipment, undated


Box 130 Folder 49 RCA Transmitter Specifications, 1940s


Box 130 Folder 50 RCA Correspondence, 1936


Box 130 Folder 51 Westinghouse Correspondence, 1936


Box 130 Folder 52 Agreement between Armstrong and C.M. Jansky Jr., 1944


"Notes and Abstracts of Past Examinations and Cross-Examinations of RCA Witnesses"



Box 131 Folder 1 Handwritten Notes, circa, 1953


Box 131 Folder 2 Memoranda, 1950-1953


Box 131 Folder 3-4 Testimony Notes--Handwritten Drawings and Notes, circa, 1953, (2 Folders)


Box 131 Folder 5 Documents--General, circa, 1953


Box 131 Folder 6 Legal Fees to Moses and Nolte--Case Numbers and Details, 1938-1943


Household Bills and Receipts


Box 131 Folder 7 Stocks--Armstrong, Esther Marion, 1924-1926


Box 131 Folder 8 Telephone, 1941 and 1946, 1941, 1946


Box 131 Folder 9 General, 1941-1950


Box 131 Folder 10 Hotels, 1947-1953


Box 131 Folder 11 Household Ledger, 1939, 1943, 1939, 1943


Box 131 Folder 12 Tax Memoranda, 1937


Box 131 Folder 13 Radio Related Bills, 1931


United States Patent Reprints


Box 131 Folder 14-20 A through W, 1920s-1950s, (7 Folders)


Box 131 Folder 21 "Patent and Patent Specifications--Diversity Systems"--Original Drawings, Notes and Annotations, circa, 1952


Box 131 Folder 22 United States Geological Survey Maps--New Hampshire and New York, 1927-1934


Box 131 Folder 23 Charts, Handwritten Drawings, and Notes, 1929-1937, undated, 1929-1937, undated


Box 131 Folder 24 Invitation to the 100th Anniversary of the United States Patent, 1936 November 23



Box 90 Folder 1 Pattison, D.R.--"Field Testing a Microwave Channel for Voice Communication, Relaying, Telemetering and Supervisory Control"--AIEE Technical Paper,, 1950 April


Box 90 Folder 2 Penn-Allen Broadcasting Co.--Correspondence, 1947-1951


Box 90 Folder 3 Pennsylvania Turnpike Police Radio Installation, 1941 September


Box 90 Folder 4 Personalities in Science--Armstrong--Scientific American, 1943 June


Box 90 Folder 5 Personnel--Correspondence, Memoranda, 1948-1954


Box 90 Folder 6 Employment Record Cards, circa, 1955


Box 90 Folder 7 Peters, R.G.--FM Ratio Detectors, 1945


Box 90 Folder 8 Peterson, Chester P.--Correspondence (photocopies), 1948


Box 90 Folder 9 Peterson, E.--Frequency Detection and Speech Formants, 1950


Box 90 Folder 10 Philco Corporation--Advertisements, 1948


Philco Corporation Litigation


Armstrong v. Philco Corporation


Box 90 Folder 11-12 Correspondence, Memoranda, Publications and Notes, 1941-1948, (2 Folders)


Box 90 Folder 13 Pleadings, 1956


Box 90 Folder 14 Data for Suit, Extra Copies, Papers Not Used, 1942-1955


Box 90 Folder 15 Suits Against Other Infringers, 1953


Box 90 Folder 16 Philco Radio Models--Specifications, undated


Box 90 Folder 17 Philco Home Radio Yearbook, 1950


Box 90 Folder 18-19 Philco Television Yearbook, 1949-1950, (2 Folders)


Box 90 Folder 20 FM (Pre-war--Fake FM Sets--Correspondence, Memoranda, Advertisements,, 1941-1943


Box 90 Folder 21 FM-Post War--Correspondence, Clippings, 1945-1948


Box 90 Folder 22 Infringement Circuit Diagrams, 1946, undated, 1946, undated


Box 90 Folder 23 Litigation Matters, 1944-1946


Box 90 Folder 24 Licensing, 1936-1946


Box 90 Folder 25 Philco Engineering and Equipment Data, 1944-1953, undated, 1944-1953, undated


Box 90 Folder 26 General, 1949-1951


Box 90 Folder 27 Opinion on '069 Patent--Fish Richardson to RCA, 1939


Box 90 Folder 28 Confidential Documents, undated


Box 90 Folder 29 Early FM Work, undated


Box 90 Folder 30 Correspondence and Reports Regarding Armstrong Situation, 1941-1955


Box 90 Folder 31 Instruction Manual--R-F Signal Generator Model 7070, undated, 7070, undated


Box 90 Folder 32 Instruction Manual--FM and AM Signal Generator Model 7170, undated, 7170, undated


Box 90 Folder 33 Instruction and Service Manual Model 7008, undated, 7008, undated



Box 91 Folder 1 Report on RCA's Ratio Detector as Filed with SEC, 1946


Box 91 Folder 2 Newspaper and Magazine Advertisements, 1941, undated, 1941, undated


Box 91 Folder 3 Charts, undated


Box 91 Folder 4 McCormack Memo "Consumer's Union" Report on Philco, 1941


Box 91 Folder 5 Philco Memo Regarding FM and Recommendation to Pool Patents, 1942


Box 91 Folder 6 Notes on Infringements, 1948


Box 91 Folder 7 Correspondence and Releases, 1939-1941


Box 91 Folder 8 Original SEC File of Exhibit 17-L From Philco Corporation on "Report on the RCA Ratio Detector,", 1945 September 25


Box 91 Folder 9 Memoranda, 1953


Box 91 Folder 10 Correspondence File, 1953


Box 91 Folder 11 Legal Documents--Duplicates, 1954


Box 91 Folder 12 Legal Documents, 1953


Box 91 Folder 13 Esther Marion Armstrong v. Philharmonic Radio and Television Corp.--Pleadings,, 1955


Box 91 Folder 14 Phillips Transmitting News, 1934-1935


Box 91 Folder 15 Phillips, Edward C.--Testimony of--FCC Docket No. 8487 1947 November 20, 8487, 1947 November 20


Box 91 Folder 16 Phillips, Mrs. J.F.--Correspondence, 1953


Box 91 Folder 17 Pieracci, R.J.--"A Frequency Modulation Monitoring System,", 1940


Box 91 Folder 18 Phonevision--Correspondence, Clippings, Publications--Includes Armstrong's "Phonevision Idea,", 1933-1953


Photostats


Alphabetical



Box 134 Folder 1-3 A, 1930-1957, undated, 1930-1957, undated, (3 Folders)


Box 134 Folder 4-6 A through C,1933-1957, (3 Folders)


Box 134 Folder 7 D through E,1930-1951, undated


Box 134 Folder 8-9 F, 1936-1951, undated, 1936-1951, undated, (2 Folders)


Box 134 Folder 10-11 G through H, 1943-1951, undated, 1943-1951, undated, (2 Folders)


Box 134 Folder 12 I through L, 1935-1951, undated, 1935-1951, undated


Box 134 Folder 13 M through P, 1925-1953, undated, 1925-1953, undated



Box 135 Folder 1-4 R through S, 1933,-1953, undated, (4 Folders)


Box 135 Folder 5 T through Z, 1913-1953


Chronological



Box 30 Folder 16-22 1891-1948, (7 Folders)



Box 31 Folder 1-10 1930-1953, (10 Folders)



Box 32 Folder 1 1915-1925


Uncatalogued Documents



Box 135 Folder 6-7 Correspondence found in Lab "Carbon Copy" file, 1936-1945, (2 Folders)



Box 91 Folder 19 Pierce, J.R. and A.L. Hopper--"Non-Synchronous Pulse Multiplex System with Random Sampling,", undated


Box 91 Folder 20 Pinkerton, D.C. and N.H. Shepherd--"Reducing Unwanted Radiation in Mobile Transmitters,", 1950


Box 91 Folder 21 Plummer, Curtis B.--Clippings, 1950


Box 91 Folder 22 Plump, E.H.--"Interference Reduction Through Frequency Modulation,", 1938-1953


Pollack, Dale


Box 91 Folder 23 Correspondence, 1947-1951


Box 91 Folder 24 "Interference Between Stations in Frequency Modulation Systems,", 1933-1935


Box 91 Folder 25 "Comparison of Ferns Model 18C and Measurements Corporation Model 80 Signal Generators,", 1948 March 8


Box 91 Folder 26 "The Design Inductances for Frequencies Between 4 and 25 Megacycles,", 1937


Box 91 Folder 27 Porter, Paul--FCC Reports and Testimony, 1940-1946


Box 91 Folder 28 Popov, Alexander S.--Article in Wireless Engineer, 1949 August


Box 91 Folder 29 Preece, W.H.--"Signaling Through Space Without Wires,", 1897


Box 91 Folder 30 Pratt, H.--'The First Fifty Years of International Radio Communication',, 1952


Box 91 Folder 31 Press Wireless, Inc.--Correspondence, 1951


Box 91 Folder 32 Price, Pattie--Correspondence, 1948-1952


Box 91 Folder 33 Priest, Conan A.--Publications, 1946-1949


Box 91 Folder 34 Production--Production of FM Sets in Home Receivers--Correspondence, Memoranda, Charts, Publications,, 1950-1953


Box 91 Folder 35 Promotion--Publications, Correspondence, 1950


Box 91 Folder 36 Propaganda--Hostile--Includes the United Kingdom, 1930-1953


Box 91 Folder 37-38 Propagation--Ionospheric Radio Propagation--Publications, Reports, Correspondence, 1948-1950, undated, 1948-1950, undated, (2 Folders)



Box 92 Folder 1 Radiation--Oscillator Radiation Field Checks--Article, 1950, undated, 1950, undated


Radio and Television, Inc. Litigation


Armstrong v. Radio and Television, Inc.


Box 92 Folder 2 Pleadings, 1956


Box 92 Folder 3 Data, Extra Copies, Papers Not Used, 1955


Box 92 Folder 4 Correspondence, 1955


Box 92 Folder 5 Legal Documents, 1956


Box 92 Folder 6 Charts, 1957, undated, 1957, undated


QST: A Magazine Devoted Entirely to Amateur Radio


Box 92 Folder 7 Schnell Expedition, 1925


Box 92 Folder 8 Editorial on March 1940 FCC Hearings on FM, 1940 May, March 1940, 1940 May


Box 92 Folder 9 Editorial Salute to Edwin H. Armstrong, undated


Box 92 Folder 10 Correspondence, Articles, 1950-1952


Pupin, Michael


Box 92 Folder 11 Correspondence, Articles, 1895-1950


Box 92 Folder 12 Graphs, Blueprints--Half-Lengths For Various Frequencies, 1918


Box 92 Folder 13 Radar--Correspondence--Includes Notes and Drawings Regarding Guided Missiles Radar,, 1946-1947


Box 92 Folder 14 Public Relations--"Armstrong Personal"--Correspondence, Invoices, Articles,, 1939-1948


Box 92 Folder 15 Correspondence Between Armstrong and Public Relations Firms, 1940-1948


Radio


Box 92 Folder 16 The Armstrong System Trademark, undated


Box 92 Folder 17-26 Publications, Advertisements, Articles and Programs--Includes Wireless Map, 1910-1980, undated, 1910-1980, undated, (10 Folders)



Box 223 Folder 1-9 Publications--Includes Early Catalogs of De Forest Radio Telephone and Telegraph Co.--Telefunken--Marconi Wireless Telegraph Company, Ltd., 1903-1953, undated, 1903-1953, undated, (9 Folders)



Box 92 Folder 27 Programs, Conferences, Awards and Banquets, 1916, 1930-1940, 1916, 1930-1940


The Radio Club of America, Inc.



Box 93 Folder 1-3 Proceedings of the, 1919-1922, 1934-1947, 1948-1958, 1919-1922, 1934-1947, 1948-1958, (3 Folders)



Box 262 Folder 8 "The Legacies of Edwin Howard Armstrong" volume 64, number 3, 1990 November



Box 93 Folder 4 41st Anniversary Banquet, 1950


Box 93 Folder 5 43rd Anniversary Banquet and Presentation of the Armstrong Medal to H.J. Round,, 1952


Box 93 Folder 6 44th Anniversary Banquet and Presentation of the Armstrong Medal to Raymond Heising,, 1953


Box 93 Folder 7-8 Publications and Newsletters, 1963-1972, (2 Folders)


Box 93 Folder 9-11 Correspondence, Papers, Drafts, Meeting Minutes and Nominations, 1948-1953, (3 Folders)


Box 93 Folder 12 Photographs--Includes Dedication Ceremonies of 1BCG Monument, Edwin H. Armstrong, George E. Burghard, Paul Godley and Ernest V. Amy, Greenwich, Connecticut,, 1950 October 21


Box 93 Folder 13 Lecture Notes Before the Radio Club--FM Paper with Multiplex, undated



Box 247 (flat) Folder 2 Technical Paper--"Some Recent Developments in the Multiplexed Transmission of Frequency Modulated Broadcast Signals"--Drafts and Figures, Includes Photograph,, 1953


RCA Litigation


Armstrong v. RCA and NBC



Box 93 Folder 14-15 Publications, Memoranda, Correspondence, Press Releases, Blueprints and Reports,, 1931-1950, (2 Folders)


Box 93 Folder 16 Armstrong Frequency Modulation Receivers--Technical Report by G.L. Beers,, 1935


Box 93 Folder 17 H.H. Beverage Letter to FCC enclosing Curves of 45.1 Mc Recordings Made at Riverhead by Peterson,, 1945


Box 93 Folder 18 Burrell's Field Tests of Wideband FM and AM From Empire State Transmitter,, 1934-1935


Box 93 Folder 19 Circuit Diagrams and Technical Paper Information, 1946-1947


Box 93 Folder 20 Equipment, Other Than Receivers, 1947


Box 93 Folder 21 Financial Information and Data, 1945-1946, undated, 1945-1946, undated


Box 93 Folder 22 Frequency Modulation--Report, 1939 December


Box 93 Folder 23 "Frequency Modulation Distortion Caused by Multipath Transmission, TR821,"--Corrington,, 1942 November 12


Box 93 Folder 24 Infringement and Litigation Matters--Correspondence and Legal Documents,, 1929-1954


Box 93 Folder 25 RCA Publications and Press Releases, 1930-1950


Box 93 Folder 26 Sadenwater Reports, Correspondence and Memoranda, 1933-1947


Box 93 Folder 27 "Simultaneous Field Strength Recordings on 47.1, 106.5 and 700 Mc, PTR-55"--W.L. Carlson,, 1946 October 2


Box 93 Folder 28 Oman's "A New Exciter Unit for Frequency Modulation Transmitters,", 1946 November


Box 93 Folder 29 "Simultaneous Field Strength Recordings on 46.7, 83.76 and 103 Mc, PTR-31"--W.L. Carlson,, 1945 November 9



Box 95 Folder 1 Technical--"V" Antenna--Blueprints, 1929


Box 95 Folder 2 FM Receivers--Clippings and Correspondence, 1946-1947


Box 95 Folder 3 Suggestions and Help in Infringement Against RCA--Correspondence, 1939-1948


Box 95 Folder 4 Television--Clippings and Advertisements, 1935-1951


Box 95 Folder 5 General, 1932-1951


Box 95 Folder 6 Neinburger Report, 1941


Box 95 Folder 7 Testimony Before FCC--Beverage and Schairer, 1950


Box 95 Folder 8 Sarnoff File--General, 1950-1952


Box 95 Folder 9 Tunick Testimony--Notes, 1952


Box 95 Folder 10 Notes for Examination of Black, 1952


Box 95 Folder 11 Abstract's of Hanson's Testimony on Listening to Alpine, 1952


Box 95 Folder 12 Letter Summaries, 1948


Box 95 Folder 13 Summary Statement and Conclusions Concerning FCC TID, 1949


Box 95 Folder 14 1940 Disclosure of RCA's Actions in 1932 Anti-Trust Suit, 1940-1942, 1940, 1932, 1940-1942


Box 95 Folder 15 Armstrong's Cross Examination Notes, undated


Box 95 Folder 16 Morris, Carbon, Clements and Hathaway--Notes, 1952


Box 95 Folder 17 Correspondence, 1914-1934


Box 95 Folder 18 Pollack Testimony--Notes, undated


Box 95 Folder 19 Dome Testimony--Notes, 1953


Box 95 Folder 20 Notes from Labus-Priest Report, 19301-947


Box 95 Folder 21 "General Research" and "Television Research"--RCA Reports, 1933


Box 95 Folder 22 Articles and Crosby Notes, 1923-1950


Box 95 Folder 23 Wide Swing Patent--Information Obtained by Questioning Armstrong and Notes,, 1948


Box 95 Folder 24 Memoranda and Testimony, 1952


Box 95 Folder 25 General Correspondence, 1931-1934


Box 95 Folder 26 References to Adversely Held Patents, 1939-1943


Box 95 Folder 27 General, 1930-1931


Box 95 Folder 28 "Frequency Modulation"--RCA, 1939


Box 95 Folder 29 "Proposed Plan for Television"--RCA, 1933


Box 95 Folder 30 "New Approaches to Broadcasting"--RCA, undated


Box 95 Folder 31 "A Study Made by the Engineering Department of Early Commercialization of Research and Development Projects in the Field of Special Apparatus"--RCA,, 1939


Box 95 Folder 32 "A Study of the Characteristics of the Radio Detector and its Place in Radio History"--Armstrong,, 1948


Box 95 Folder 33 Exhibit Statistics, 1954


Box 95 Folder 34 Armstrong Statement, 1934-1953


Box 95 Folder 35 Organization Chart, 1943


Box 95 Folder 36 RCA License, 1946


Box 95 Folder 37 Armstrong Agreements, undated


Box 95 Folder 38 General, 1936-1954



Box 96 Folder 1 General, 1943-1953


Box 96 Folder 2 Sales Material, 1945


Box 96 Folder 3 Decision Circuit Court of Appeals 2nd Circuit--Correspondence, 1933-1934


Box 96 Folder 4 Awards, 1931-1942


Box 96 Folder 5 Notes for Examination of Shelby, Buzalski, Brown and Crosby, 1951-1952


Box 96 Folder 6 Notes for Examination of Schairer, 1952


Box 96 Folder 7 Notes for Examination of Sarnoff, 1953


Box 96 Folder 8 Cross-Over Characteristics from Hathaway and Crosby's Tests, 1940


Box 96 Folder 9 Notes on Dunn's Testimony, 1951


Box 96 Folder 10 Beverage Examination Notes, 1951-1952


Box 96 Folder 11 Armstrong's Testimony--Abstracts, 1953


Box 96 Folder 12 Receivers--ACA Publicity, 1944


Box 96 Folder 13 Notes and Abstracts from Tunick's Testimony, 1952


Box 96 Folder 14 General Correspondence, 1931


Box 96 Folder 15 History of Short Wave "Professional Development" in America--Handwritten Notes,, undated


Box 96 Folder 16 FM Notes and Diagrams, 1931-1941


Box 96 Folder 17 Dunn Transcripts, 1939


Box 96 Folder 18 Nolte Correspondence and Disclosures, Radio Log, 1937-1952


Box 96 Folder 19 Abstracts of Tunick and Crosby Testimony, 1952


Box 96 Folder 20 Notes on Bucher Examination and Reports, 1952


Box 96 Folder 21 1:1 Deviation--Graphs, undated


Box 96 Folder 22 References to Important RCA Letters and Reports, 1939-1947


Box 96 Folder 23 Reports of Executive Committee, 1943-1944


Box 96 Folder 24 Abstracts and Copies of RCA Documents by LaPorte and Raymond, undated


Box 96 Folder 25 Original Disclosure of "Phone Vision,", 1933


Box 96 Folder 26 General, 1952


Box 96 Folder 27 Sadenwater's Abstracts and Notes on RCA Reports, 1939-1940


Box 96 Folder 28 Calculations Based on Sound Curves From Fletcher and Olson Used in Tunick's Testimony,, undated


Box 96 Folder 29 Pollack Correspondence, 1938-1945


Box 96 Folder 30-31 Tunick Testimony and Notes, 1952, (2 Folders)


Box 96 Folder 32 General Notes, 1939-1944


Box 96 Folder 33 Marconi File, 1914-1922


Box 96 Folder 34 Interference--Transcript, undated


Box 96 Folder 35 "Informal Address on Radio"--David Sarnoff, 1922



Box 97 Folder 1 Coordination Committee Minutes of RCA, 1929


Box 97 Folder 2 The Rule Against Patenting Natural Phenomena, undated


Box 97 Folder 3 License Agreement--General, 1939-1940


Box 97 Folder 4 "Down to Earth on 'High Fidelity',", 1944


Box 97 Folder 5 Translated German Articles, 1928-1929


Box 97 Folder 6 RCA Engineering Reports on Frequency Modulation for Picture Transmission in Television,, undated


Box 97 Folder 7 Preliminary Meetings Considering the Wide Band System, undated


Box 97 Folder 8 Reference or Reports of Meetings from Executive Grouping, undated


Box 97 Folder 9 "Some Effects of Phase Distortion in the TD-2 Radio System-Case 38491"--Technical Memorandum and Notes,, 1951


Box 97 Folder 10 Minutes of Meeting of the RMA Committee on FM, 1939


Box 97 Folder 11 Answers and Objections to Plaintiff's Second Interrogatories, undated


Box 97 Folder 12 Clippings, 1942-1953


Box 97 Folder 13 Olson and Fletcher Articles, 1922


Box 97 Folder 14 "Instructions for Ultra High Frequency Receiver Type ER-13-A1,", 1931


Box 97 Folder 15 "Short Wave Broadcast Call Book"--General Electric, 1929


Box 97 Folder 16 Short Wave Receiver AR-1496-D Instructions, 1929


Box 97 Folder 17 Databooks--Radiotron Models UV-851, UX 860, UV 861, 1927


Box 97 Folder 18 Instructions for the Ultra High Frequency Converter Type HFC, undated


Box 97 Folder 19 General, 1935-1947


Box 97 Folder 20 FM Equipment--Correspondence and Lists, 1940-1941


Box 97 Folder 21 FM Inquiries, 1940-1942


Box 97 Folder 22 FM--General, 1921-1940


Box 97 Folder 23 Compilation of REL, RCA and AT and T, 1933


Box 97 Folder 24 Short Wave Diversity Telephone Receivers Descriptive Specifications--Booklet,, undated


Box 97 Folder 25 An Ultra High Frequency Field Strength Measuring Receiver, 1935


Box 97 Folder 26 General, 1933


Box 97 Folder 27 Correspondence on FM with Independent Business, 1937-1939


Box 97 Folder 28 Notes by Harry Sadenwater, 1949


Box 97 Folder 29 C-3100 FM Receiver, undated


Box 97 Folder 30-31 General--Includes Blueprints, Drawings and Diagrams, 1941-1949, (2 Folders)


Box 97 Folder 32 Articles, 1945-1949



Box 98 Folder 1-2 Prior Art Relied on by Defendants, 1923-1933, (2 Folders)


Box 98 Folder 3-7 Memoranda for Armstrong, 1946-1952, (5 Folders)


Box 98 Folder 8-11 Motion Papers, Briefs, Affidavits, 1949-1950, (4 Folders)


Box 98 Folder 12-13 US District Court, District of Delaware--Legal Documents, 1948-1949, (2 Folders)


Box 98 Folder 14 Armstrong's Account Book, undated



Box 100 Folder 1 Press Releases and Correspondence, 1948-1966


Box 100 Folder 2 RCA v. REL--Federal Telegraph Co. Correspondence--Photostats and Court Documents,, 1913-1930


Box 100 Folder 3 Memoranda, 1948-1949


Box 100 Folder 4 Complaints and Briefs, 1948-1949


Box 100 Folder 5 Memoranda, 1949


Box 100 Folder 6 "Seeley and Other RCA Deponents in Possession of the Facts Should be Required to Testify Fully About the Radio Detector,", undated


Box 100 Folder 7 Mobile and Miscellaneous Communication License Agreement, undated


Box 100 Folder 8 Opposition to Defendants Motion and Answers and Objections to Plaintiffs 2nd Interrogatories,, 1950


Box 100 Folder 9 List of Manufacturers to Which Notice of Infringement Were Given in December 1948, 1948, December 1948, 1948


Box 100 Folder 10 Requests for Admission of Facts, 1951-1952


Box 100 Folder 11 RCA v. REL--US Supreme Court--Correspondence, 1933-1934


Box 100 Folder 12 General, 1946-1947


Box 100 Folder 13 Television Broadcasting Register as of December 1, 1946, 1947, December 1, 1946,, 1947


Box 100 Folder 14 Correspondence, 1931-1935


Box 100 Folder 15 Correspondence and Reports on FM, 1939-1940


Box 100 Folder 16 General Sarnoff and the Titanic--Articles, 1952-1953


Box 100 Folder 17 Jolliffe Notes, 1939


Box 100 Folder 18 General Correspondence, 1928-1931


Box 100 Folder 19 AM-FM Dynamic Demonstration Instruction Book Type WE-82A, undated


Box 100 Folder 20 RCA Annual Report, 1949


Box 100 Folder 21 26th Annual Report Excerpt, 1945


Box 100 Folder 22 27th Annual Report Excerpt, 1946


Box 100 Folder 23 "Cathode Ray Tubes and Allied Types"--Manual, 1935


Box 100 Folder 24 "RCA Makes its First FM Radio"--Captioned Picture, 1947


Box 100 Folder 25 "The Devil's Workshop"--Booklet on Government Theft and Conspiracy,, 1927


Box 100 Folder 26 Composite of Plaintiff's 2nd Interrogatories to Defendants, 1950


Box 100 Folder 27-28 Jolliffe Documents, 1948, 1952, 1948, 1952, (2 Folders)


Box 100 Folder 29 Jolliffe Exhibits 1-18, undated


Box 100 Folder 30 General Correspondence, 1934-1947


Box 100 Folder 31 Requests to Re-broadcast Programs, 1942-1943


Box 100 Folder 32 Charles Hughes--Correspondence, 1928


Box 100 Folder 33 General, 1939-1942



Box 101 Folder 1 Murray Hill Photostats, undated


Box 101 Folder 2 Correspondence with William H. Martin, Foreign Patent Attorney, 1934-1935


Box 101 Folder 3 Excerpts from Armstrong Testimony, 1953


Box 101 Folder 4 Notes Regarding Beverage, Lindenblad, Peterson, Amy, Engstrom and Luck,, undated


Box 101 Folder 5-6 Sadenwater's Notes, undated, (2 Folders)


Box 101 Folder 7 Sadenwater Letters, 1938-1946


Box 101 Folder 8 Correspondence, Memoranda, Diagrams, Lists, Notes and Clippings, 1927-1951


Box 101 Folder 9 Early Letter by Beal, Sadenwater and Clement, 1934-1939


Box 101 Folder 10 Original Log--Westhampton, Long Island, 1934 June 9


Box 101 Folder 11 Sadenwater Letter, 1938, 1946, 1938, 1946


Box 101 Folder 12 Various Disclosures Regarding FM, 1930-1944


Box 101 Folder 13 Prior Art Patents--Other Armstrong Patents, 1948


Box 101 Folder 14 Data for Brief in Opposition to Motion to Strike, 1948


Box 101 Folder 15 Forms of Order on Motion to Strike, 1949


Box 101 Folder 16 Examination Before Trial of Armstrong--Defendant's Demand for Documents,, 1949


Box 101 Folder 17 Examination Trial of Armstrong--Exhibits, 1949


Box 101 Folder 18 Proposed Discovery Motion, 1949


Box 101 Folder 19 Data for Bill of Complaint, 1948


Box 101 Folder 20 Mercoid Defense--Licenses, undated


Box 101 Folder 21 Interrogatories, 1950


Box 101 Folder 22-23 Broadcast Receiver License, undated, (2 Folders)


Box 101 Folder 24 Broadcast Transmitter Licenses, 1941, undated, 1941, undated


Box 101 Folder 25 Mobile Communication License, 1940, undated, 1940, undated


Box 101 Folder 26 Frequency Modulation--Revision of Licenses, 1944-1945


Box 101 Folder 27 Wide Swing Patent in Suit 1,941,069--Copy of Patent and Abstract of File,, undated


Box 101 Folder 28 Mercoid Defense--Lyon and Schairer Opinions, 1940


Box 101 Folder 29 Mercoid Defense--Notes, 1940-1949


File Wrappers



Box 140 Folder 1 Chaffee, Joseph G., 1937-1942


Box 140 Folder 2 Crosby, Murray G., 1932-1948


Box 140 Folder 3 Hansell, Clarence W., 1929-1935


Box 140 Folder 4-5 Seeley, Stuart W., 1931-1950, (2 Folders)


Box 140 Folder 6-10 Tunick, Harry, 1932-1949, (5 Folders)


Box 140 Folder 11-14 Patents--General, 1930s-1950s, (4 Folders)



Box 141 Folder 1-8 Patents--General, 1930s-1950s, (8 Folders)


Box 141 "File of Non-Armstrong Patents," 1920s-1940s (volume), 1920s-1940s


Box 141 "Non-Armstrong Patents," 1920s-1950s (volume), 1920s-1950s



Box 142 "Prior Art Relied on by Defendants," 1920s-1940s (volume), 1920s-1940s


Box 142 "Memoranda Regarding Patents," circa 1948 (volume), 1948


Armstrong


Box 142 Folder 1 American Patents, 1920-1943


Box 142 Folder 2 Foreign Patents, 1929


Box 142 Folder 3 Unexpired Patents, 1937-1953


Box 142 Folder 4-7 Patents Cited in RCA Case, 1920s-1950s, (4 Folders)


Lists


Box 142 Folder 8 "Miscellaneous Patent Lists,", undated


Box 142 Folder 9 "Predistortion Patents,", undated


Box 142 Folder 10 "Recognition of Inventions by RCA Engineers of Standing in the Art,", undated


Box 142 Folder 11 "Recognition of Inventions by Executives,", undated


Box 142 Folder 12 "Miscellaneous Things to Look Up,", undated


Box 142 Folder 13 "Record of Patent Department Operations Leading up to Approval,", 1952 February 26


Box 142 Folder 14 Abstracts of Hansell Patents, undated


Box 142 Folder 15 German Patent Application, 1936-1940


Box 142 Folder 16 Materials Concerning RCA Allowances for RCA Case, circa, 1950


Box 142 Folder 17 "Record of Discovery"--Original Sketch, 1920 December 5


Box 142 Folder 18 "Method of Increasing Selectivity by Doubling the Effect of Beat Frequency Selectivity,", 1924 July 14


Box 142 Folder 19 "Method of Applying Tuning to Wave Form to Radio Telephony,", 1927 February 6


Box 142 Folder 20 "Method of Reducing the Effect of Atmospheric Disturbances on Tuned Circuits"--Handwritten, 1924 August 20--Typed Copy, 1925 May 11, 1924 August, 1925 May 11


Box 142 Folder 21 Graph showing "Galvanometer Divs." over "Frequency Kos.", 1930 June 11


Box 142 Folder 22 Disclosure (Draft) of a Method of Frequency Modulation with Accompanying Figures to Moses and Nolte, 1931 March 27--Disclosure of "Method of Receiving Modulated Waves" with Accompanying Figures, Received by Moses and Nolte on 1932 December 8--Armstrong Note from 1931 January 18, 1931 March, 1932 December, 1931 January 18


Correspondence


Box 142 Folder 23 Armstrong to Pupin--A Report Regarding Armstrong's 19 Years of Experimentation,, 1933 April 3


Box 142 Folder 24 Armstrong to Albert C. Nolte Regarding Radio Hiss Improvements,, 1933 April 28


Box 142 Folder 25 Lists Concerning Empire State Building, 1934


Box 142 Folder 26 "Method of Improving the Operation of Wide Band Frequency Modulation Receiver"--Handwritten Notes and Original Drawings,, 1934 July 6


Correspondence


Box 142 Folder 27 Schairer, O. S. and W. R. G. Baker Regarding the Merits of Armstrong's High Frequency System,1935 March


Box 142 Folder 28 Johnson, Clair V. to Armstrong Regarding his December 19th Lecture on Frequency Modulation,, 1935 December 20


Box 142 Folder 29 Nolte, Albert C. to Armstrong Regarding System for Complete Coverage using Frequency Modulation,, 1936 May 7


Box 142 Folder 30 "Method of Reducing Disturbances from Frequency Changes in Radio Transmitting Systems"--Original Drawings,, 1937 July 26


Box 142 Folder 31 Outline of Conversation between Mr. Gover and Mr. Nicholas of RCA and Mr. Charles M. Srebroff Regarding Licensing,, 1938 September 15


Box 142 Folder 32 "General Electric Tests,", 1938-1940


Box 142 Folder 33 Correspondence-- J. H. Dewitt, Jr. to WDRC Incorporated, 1939


Box 142 Folder 34 Nolte, Albert C. to Armstrong Regarding Applications, 1939


Box 142 Folder 35 "Duncan Frequency Modulation File,", 1940


Box 142 Folder 36 Correspondence--- Charles M. Srebroff to Armstrong Regarding Frequency Modulation Receivers Purchased through Radio Engineering Laboratories,, 1941


Box 142 Folder 37 Davis, David M. to Commander McDonald Regarding Day Patent Dispute,, 1943


Box 142 Folder 38 Drawings on Synchronous Boosting and Synchronous Operation, 1944 September 25


Box 142 Folder 39 Check List, 1944 September 14


Box 142 Folder 40 Luff, Earl T. to Armstrong Regarding Fortune Magazine Article, 1948


Box 142 Folder 41 Drawings and Notes--Original and Handwritten, undated


Box 142 Folder 42 Improvements to Frequency Modulation, undated


Box 142 Folder 43 Elimination of Disturbances in Radio Signaling--Handwritten, undated


Box 142 Folder 44 Case # 39 Claims for Radio Transmitting, undated


Box 142 Folder 45 "List of Peterson Patents,", undated


Box 142 Folder 46 "RCA Patent and Licensing Materials,", 1939-1949


Box 142 Folder 47 Correspondence Regarding RCA's and Frequency Modulation Technology,, 1939-1945


Box 142 Folder 48 Catalog for RCA Victor AM/FM Radio, Model 8X71 and 8X72, 1948


Box 142 Folder 49 Loughlin, B. D., "Performance Characteristics of FM Detector Systems,", 1948


Box 142 Folder 50 Armstrong Notes, undated



Box 102 Folder 1 Prior Art Patents, 1941, undated, 1941, undated


Box 102 Folder 2 Raymond Memoranda on Prior Patents, undated


Wide Swing Patent in Suit 1,941,069


Box 102 Folder 3 Dome Defense, 1948-1954


Box 102 Folder 4 Schairer Opinion, 1941


Box 102 Folder 5 Disclosures and Early Armstrong Notes--Photostats, 1932-1933


Box 102 Folder 6 Dome Defense, 1930


Box 102 Folder 7 Reply to Mr. Davis' Argument, 1953


Box 102 Folder 8 Recent Notes, 1953-1958


Box 102 Folder 9 Reissue Patent 21,660--Predistortion Patent and Suit--Copy of Patent and Abstract of File, 1940, undated, 1940, undated


Box 102 Folder 10 Notes, 1940-1953


Box 102 Folder 11 Memorandum of Law on "Public Use" Doctrine in Relation to Reissue Patent,, 1949


Box 102 Folder 12 Wide Swing Patent 1,941,069--Copy of Patent and Abstract of File, 1944, undated, 1944, undated


Box 102 Folder 13 Patent 1,941,447 Balanced Detector--Copy of Patent and Abstract of File,, 1948


Box 102 Folder 14 Patent 1,941,066--Abstract of File of Runge Patent 1,917,395, undated


Box 102 Folder 15 Notes, 1948


Box 102 Folder 16 Abstract of File of Seeley Patent 2,121,103, 1950


Box 102 Folder 17 Patent 1,941,068 Phase Shift Transmitter--Copy of Patent and Abstract of File,, undated


Box 102 Folder 18 Patent 1,941,068--Notes, 1949


Box 102 Folder 19 Transmitter Patent 1,941,068--Notes --Photocopies, 1932


Box 102 Folder 20 Patent 2,098,698--Copy of Patent and Abstract of File, 1937


Box 102 Folder 21 Notes, 1949


Box 102 Folder 22 Patent 2,295,323--Limiter, 1940


Box 102 Folder 23 Other FM Patents, 1944, undated, 1944, undated


Box 102 Folder 24-25 RCA FM Patents, 1948, undated, 1948, undated, (2 Folders)


Box 102 Folder 26 Crosby Abstract of Files, RCA Patents, 1949


Box 102 Folder 27 Abstract of File--Dome and Bown Patent, undated


Box 102 Folder 28 Armstrong Publications and Addresses, 1948


Box 102 Folder 29 Publications by Others, 1948-1949


Box 102 Folder 30 AT and T Notes and Memoranda, 1931-1953



Box 103 Folder 1 AT and T Notes and Memoranda, 1952


Box 103 Folder 2-3 RCA Publications and Advertisements, 1931-1947, (2 Folders)


Box 103 Folder 4 Unpublished Admissions, 1931-1935


Box 103 Folder 5 Outstanding License Contracts, 1948-1949


Box 103 Folder 6 Proof of Infringement--Raymond Reports, 1947


Box 103 Folder 7 Proof of Infringement--RCA Circulars, 1948


RCA FM Circuits


Box 103 Folder 8-9 Data From Defendant's and Analysis Thereof, 1949, (2 Folders)


Box 103 Folder 10-11 Requests for Admission, 1949, (2 Folders)


Box 103 Folder 12 Plaintiff's Statement as to Infringement and Related Statements Made During Examination of Armstrong,, 1949


Box 103 Folder 13 Infringement--Pre-Trial Depositions for Plaintiff--General, 1950


Box 103 Folder 14 Pre-Trial Depositions for Plaintiff--Admissions of Validity, 1950


Box 103 Folder 15 Infringement--Pre-Trial Depositions for Plaintiff--Use of System in Development--Memoranda,, 1950


Box 103 Folder 16 Legal Memoranda, 1948-1950


Box 103 Folder 17 Conference with Bowles, 1948


Box 103 Folder 18 Bowles Memoranda, undated


Box 103 Folder 19-20 General, 1948-1950, (2 Folders)



Box 104 Folder 1 General, 1948-1979


Box 104 Folder 2 IRE Standards--Booklets, 1938-1949


Box 104 Folder 3 Interrelation of Armstrong Inventions, 1949


Box 104 Folder 4 Prior Patents and Prior Uses Relied on by Defendants, 1936-1937


Box 104 Folder 5 Analysis of Mr. Hoxie's Examination, 1949-1950


Box 104 Folder 6 Raymond's Report on Issues and Status of Evidence, 1950


Box 104 Folder 7 Automatic Radio Manufacturing Co. v. Hazeltine Research, Inc.--Motion,, 1949


Box 104 Folder 8 Proof of Inducement, 1951


Box 104 Folder 9 Defendant's Motion to Limit Examination Before Trial, 1950


Box 104 Folder 10 Examination of Hansell, 1939-1951


Box 104 Folder 11 Beverage and Luck--Correspondence, 1930-1939


Box 104 Folder 12 Examination of Spiegel and Wald, 1945-1951


Box 104 Folder 13 Data Regarding Defendant's Motion for Appointment of Master, 1951


Box 104 Folder 14 Tabulation of Certain Factual Data, 1949


Box 104 Folder 15 FCC Rules and Standards, 1949


Box 104 Folder 16 Abstracts of Documents Produced by RCA, 1935-1944


Box 104 Folder 17 "Reception of Amplitude and Wide Band Frequency Modulated Signals on 41 Megacycles from the Empire State Transmitter W2XDG,", 1935


Box 104 Folder 18 RCA Research Papers, 1935


Box 104 Folder 19 Examination of Tunick, 1952


Box 104 Folder 20 Examination of Beverage, 1951-1952


Box 104 Folder 21 Statement in Response to Request for Invention Dates, 1949


Box 104 Folder 22 Peterson Exhibits, 1939-1952


Box 104 Folder 23 Tunick Exhibits, 1939-1952


Box 104 Folder 24 Glaser Exhibits--RCA Manuals, 1947-1948



Box 105 Folder 1 Helpful Statement in Dome Testimony, 1953


Box 105 Folder 2 Notes on Examination of Jolliffe, 1952


Box 105 Folder 3 Charts Prepared by Mr. Starr, undated


Box 105 Folder 4 Testimony Excerpts and Corrections, undated


Box 105 Folder 5 Preparation for Trial--Outlines and Notes, 1954


Box 105 Folder 6 Offer of Settlement, 1953


Box 105 Folder 7 Emerson Examination, 1952


Box 105 Folder 8 Proposed Request for Admissions, 1952


Box 105 Folder 9 Hansell Exhibits--Statements, Notebooks and Correspondence, 1923-1945


Box 105 Notes for Examination of Crosby and Beverage, 1951-1952, undated (volume), 1951-1952, undated


Box 105 Memoranda, 1948-1952 (volume), 1948-1952


Box 105 Folder 10 Original RCA Victor FM Correspondence,1935-1936


Box 105 Folder 11 General, 1952-1954


Box 105 Folder 12 "Wide Band Frequency Modulation Tests" and "Ultra High Frequency Propagation"--RCA Reports by Beverage and Others,, 1935-1936


Box 105 Folder 13 Copies of Armstrong Patents in Suit, 1933


Box 105 Folder 14 Articles, License Agreements, Statements, 1948-1951


Box 105 Folder 15 Civil Action #1139--Lab Investigation and Mobile and Land Station Communication Equipment,, 1949


Box 105 Folder 16 "Balanced Phase Shift Discriminators" and Memoranda for McCormack,, 1953


Box 105 Folder 17 Legal Documents, 1948


Box 105 Folder 18 Opposition to Defendant's Motion of August 3, 1950, 1950, August 3, 1950, 1950


Box 105 Folder 19 "Frequency and Phase Modulation Applied to Short Wave Communication"--Crosby,, 1932


Box 105 Folder 20 RCA Tube Advertisements, undated


Box 105 Folder 21 Group IA Sound Broadcast Transmitters--Blueprints, 1946-1947


Box 105 Folder 22 Transmitter Instruction Manuals, undated


Box 105 Folder 23 Blueprints, 1945


Box 105 Folder 24 FM-10A Frequency Modulation Transmitter Equipment Manual, undated


Box 105 Folder 25 Performance Data Booklets, undated


Box 105 Folder 26 Equipment Manuals, undated


Box 105 Folder 27 Group IC-Mobile and Land Station Communication Equipment--Instruction Manuals,, 1947-1948



Box 106 Folder 1 Manual, 1947


Box 106 Folder 2 Manuals and Lab Bulletin Index, 1945-1948


Box 106 Folder 3 Group IID-Remote Pick-up and Relay--Blueprints and Manuals, 1946-1947


Box 106 Folder 4 Group IE-RCA Communications Equipment --Blueprints, 1940-1947


Box 106 Folder 5 Blueprints and Manuals, 1946-1947


Box 106 Folder 6 Group IIG-Meters and Monitors--Manuals, 1941-1946


Box 106 Folder 7 Group IID-Remote Pick-up and Relay--Manuals and Blueprints, 1946-1947


Box 106 Folder 8 Group IG-Variable Frequency Generators--Blueprints, 1938-1947


Box 106 Folder 9 Group IA-Television Sound Transmitters--Blueprints and Manuals, 1940-1948


Box 106 Folder 10 Group IIA-Sound Broadcast Receivers--Service Data and Manuals, undated


Box 106 Folder 11 Blueprints, 1948


Box 106 Folder 12 Group IIB-FM Sound with Television Receivers, undated


Box 106 Folder 13 Manuals and Blueprints, undated


Box 106 Folder 14 Group IIE-RCA Communications Equipment--Manuals, undated


Box 106 Folder 15 Manuals, 1942-1947


Box 106 Folder 16-17 Frequency Modulated Communications Equipment--Manuals, undated, (2 Folders)



Box 107 Folder 1 Manuals, undated


Box 107 Folder 2-23 Correspondence, 1935-1953, (22 Folders)


Crosby, Murray G.



Box 108 Folder 1 Index to Digest of Crosby Examination, undated


Box 108 Folder 2-3 Typed and Handwritten Notes Regarding Crosby--Includes Diagrams and Figures, 1952, undated, 1952, undated, (2 Folders)


Box 108 Folder 4 Byerly's Notes Regarding Crosby, 1952, undated, 1952, undated


Box 108 Folder 5 Original Disclosures in Crosby Interference and Reduction to Practice--Includes Drawings, 1929 March 10, 1930 February 8, 1929 March, 1930 February 8


Box 108 Folder 6 Some Crosby Measurements Regarding FM, undated


Box 108 Folder 7-8 Crosby Examination Notes, 1951-1952, undated, 1951-1952, undated, (2 Folders)


Box 108 Folder 9 Notes on Crosby--Includes Notes on Crosby's Early FM Reports, undated


Box 108 Folder 10 Curve of Crosby Discriminator of F-18-1, 1951


Box 108 Folder 11 Abstracts From Crosby Testimony, 1952


Box 108 Folder 12 Memoranda, Articles, Correspondence, 1953, undated, 1953, undated


Box 108 Folder 13 F-18 Reports--Correspondence, 1935-1937


Box 108 Folder 14 Documents--General, 1929-1951


Box 108 Folder 15 Notebooks--Photostats, 1931-1934


Box 108 Folder 16 Early Work Reports, 1932-1937


Box 108 Folder 17 Documents, 1932-1941


Box 108 Folder 18 Correspondence, 1940


Box 108 Folder 19 Armstrong Notes, 1951


Box 108 Folder 20 Schock Notebooks, 1930


Box 108 Folder 21-24 General, 1929-1941, (4 Folders)


Box 108 Folder 25-26 Data for Examination of Crosby, 1951, undated, 1951, undated, (2 Folders)



Box 259 Folder 4 Interference No. 72, 464--Brief for Murray Crosby, 1939



Box 109 Folder 1 Examination of Crosby--Law Memoranda on Hostile Witness, 1951


Box 109 Folder 2 Crosby Exhibits--Patent and Research, 1937


Box 109 Folder 3 Index to Documents on Crosby--Armstrong Race for Publication, 1951


Box 109 Folder 4-5 Crosby Documents--General, 1935-1939, (2 Folders)


Box 109 Folder 6 "Correspondence and History of Crosby's Article, 'Service Range of Frequency Modulation,'", 1939-1951


Box 109 Folder 7 Guillemin Articles, 1951


Box 109 Folder 8-9 Crosby Examination--Notes, 1952


Box 109 Folder 10 Abstracts from Tunick's Testimony on Interference, 1952


Box 109 Folder 11 Analysis of Crosby Testimony, 1952


Box 109 Folder 12 Crosby--Briefs, 1939


Box 109 Folder 13 US Patent Office Record for Armstrong, 1939


Box 109 Folder 14 US Patent Office Record for Crosby, 1938


Exhibits


Box 109 Folder 15-18 1 through 45, 1930-1939, (4 Folders)


Box 109 Folder 19 81 through 105, 1930-1945


Box 109 Folder 20-21 1 through 105, 1931-1952, (2 Folders)



Box 110 Folder 1 Notes and Abstract of Crosby Notebooks, 1952


Box 110 Folder 2 Crosby Exhibits--Notes and Research, 1931-1952


Box 110 Folder 3-4 46-78, 1930-1939, (2 Folders)


Box 110 Folder 5-8 27-105, 1930-1952, (4 Folders)


Crosby Notebooks


Box 110 Folder 9 No. 1 and 1A--Photostats, 1931


Box 110 Folder 10 No. 1B, 1930


Box 110 Folder 11 No. 5, 1929


Box 110 Folder 12 No. 6, 1930-1931


Box 110 Folder 13 No. 7, 1931


Box 110 Folder 14 No. 8, 1932


Box 110 Folder 15 No. 9, 1933-1934


Box 110 Folder 16 No. 10, 1934-1935


Box 110 Folder 17 No. 11, 1935-1936


Box 110 Folder 18 No. 12-13, 1937-1942


Box 110 Folder 19 Notes on Crosby Notebooks, 1952


Box 110 Folder 20 Crosby Patent 2,230,212--File History, 1940-1955


Box 110 Folder 21 Crosby Application 2,114,335, 1933-1935


Box 110 Folder 22 2,230,231, 1937-1941


Box 110 Folder 23 2,081,577, 1932-1937



Box 111 Folder 1-3 Crosby Patents, 1927-1952, (3 Folders)


Box 111 Folder 4 Patent 2,229,640, 1941


Box 111 Folder 5 Record and Brief, undated


Box 111 Folder 6 Crosby, M.G.--"Binaural Sound on One FM Channel,", 1953


Box 111 Folder 7 "Communication by Phase Modulation,", 1939


Box 111 Folder 8 "Exalted-Carrier Amplitude and Phase Modulation Reception,", 1945


Box 111 Folder 9 "Frequency Modulation Propagation Characteristics,", 1936


Box 111 Folder 10-11 Preliminary Write-up of "Service Range of FM,", 1939, (2 Folders)


Box 111 Folder 12 "FM Noise Characteristics,", 1937


Box 111 Folder 13 General, 1941-1954


Box 111 Folder 14 REL-DAY "Serrasoid" Matter--D.M. Raymond, 1951


Box 111 Folder 15 Complaint, 1948


Box 111 Folder 16 Memorandum Regarding Pre-Trial Examinations of Defendant's by Plaintiff,, 1949


Box 111 Folder 17 Armstrong v. FCC--Memoranda, 1949


Box 111 Folder 18 Correspondence and Legal Memoranda, 1952


Box 111 Folder 19 Horizons Titanium Corporation--Correspondence, 1952-1954


Box 111 Folder 20 Dunn, Gano--Correspondence, 1933-1939


Box 111 Folder 21 General, 1930-1944


Box 111 Folder 22-23 Requests for Production of Documents by Defendants, 1951-1952, (2 Folders)


Box 111 Folder 24 Documents Regarding Allocation of F-2-8 Rewrite, 1935


Box 111 Folder 25 Circuit Diagrams by Pilot Radio Corp., 1946-1952



Box 112 Folder 1 Documents Examined April 2, 1950--Correspondence and Articles, 1935-1941


Box 112 Folder 2 Documents Examined April 1, 1950--Correspondence, 1939-1943


Box 112 Folder 3 Documents Selected as of April 2, 1950--FM Notes and Bibliography,, undated


Box 112 Folder 4 General, 1931-1954


Box 112 Folder 5 Diagrams, 1953


Box 112 Folder 6 Receiver Diagram and Data, 1953


Box 112 Folder 7 Supplement to Schedule of FM Apparatus and Descriptive Material, 1949


Box 112 Folder 8 Bell Telephone--General, 1935-1953


Box 112 Folder 9 Supplemental Request for Submission under Rule 36A, 1953


Box 112 Folder 10-11 Radio Receivers--Advertisements, Catalogs and Diagrams, 1945-1949, (2 Folders)


Box 112 Folder 12 Schematic Diagram, 1948


Box 112 Folder 13 Broadcast Receiver Notes, undated


Box 112 Folder 14 Artificial Line, 1952


Box 112 Folder 15 Television Receiver Ads, 1949


Box 112 Folder 16 Correspondence with Mobile and Miscellaneous Communication Licensees,, 1949-1955


Box 112 Folder 17 Harry Sadenwater's Notes, 1949


Box 112 Folder 18-21 Broadcast Receiving Set License Agreements--A through Z, 1939-1949, (4 Folders)


Box 112 Folder 22 Correspondence with Broadcast Receiving Set Licensees--D.M. Raymond,, 1948-1956


Hansell, Clarence


Box 112 Folder 23 US Patent Office--Transcript of Record, undated


Box 112 Folder 24 Brief for Edwin Armstrong--Petition for Rehearing--Memorandum for Hansell,, 1947


Box 112 Folder 25 Various Characteristics Run by Lab with Respect to Hansell Predistortion via John H. Bose,, 1949-1951


Box 112 Folder 26 Abstracts of Hansell Testimony, 1950


Box 112 Folder 27 Calculations Regarding Hansell's Pre-emphasis Patent, undated



Box 113 Folder 1 Hansell Interference--Transcripts and Briefs, 1947


Box 113 Folder 2 Patent Application 1,938,657, 1929-1933


Box 113 Folder 3 Patent Application 1,999,902, 1932-1935


Box 113 Folder 4 Patent Application 2,088,203, 1933-1937


Box 113 Folder 5 Documents to be Introduced as Exhibits--Calculations and Drawings,, undated


Box 113 Folder 6 Hansell Exhibits sent to D.M. Raymond on, November 19, 1957


Box 113 Folder 7 Exhibits--Duplicates, undated


Box 113 Folder 8 Notes on Hansell Testimony, 1952, undated, 1952, undated


Box 113 Folder 9 Exhibits in Hansell Interference--Includes Drawings, Photographs and Correspondence, 1935-1941, undated, 1935-1941, undated


Box 113 Folder 10 Hansell Predistortion Calculations--Also Predistortion Calculations of Some Hathaway Work, 1951, undated, 1951, undated


Box 113 Folder 11 Examination Notes, 1952


Box 113 Folder 12 References for German Opposition, 1952-1953


Box 113 Folder 13 Examination Notes, 1952


Box 113 Folder 14 Hansell Interference--RCA Research Division Technical Report, 1933


Box 113 Folder 15-16 US Patent Office--Briefs and Transcripts, undated, (2 Folders)


Box 113 Folder 17-20 Legal Documents--Memoranda for Files--D.M. Raymond, McCormack, and Byerly,1940-1952, (4 Folders)



Box 114 Folder 1-6 Legal Documents--Motions Before the District Court for District of Delaware, 1948-1951, undated, 1948-1951, undated, (6 Folders)



Box 259 Folder 1 Chart--Validity Issues--Issues, Patents and Types of Evidence, undated


Numbered Documents--For Use in Litigation--Photographs



Box 150 Folder 1-14 1 through 1,743, (14 Folders)



Box 151 Folder 1-14 1,744 through 3,286, (14 Folders)



Box 152 Folder 1-15 3,287 through 4,186, (15 Folders)



Box 153 Folder 1-16 4,187 through 5,455, (16 Folders)



Box 154 Folder 1-15 5,456 through 6,262, (15 Folders)



Box 155 Folder 1-16 6,263 through 7,496, (16 Folders)



Box 156 Folder 1-15 7,497 through 8,633, (15 Folders)



Box 157 Folder 1-17 8,634 through 11,475, (17 Folders)



Box 158 Folder 1-18 11,476 through 12,725, (18 Folders)



Box 159 Folder 1-19 12,726 through 13,723, (19 Folders)



Box 160 Folder 1-20 13, 724 through 14,988, (20 Folders)



Box 161 Folder 1-19 14,989 through 15,872, (19 Folders)



Box 162 Folder 1-20 15,873 through 16,794, (20 Folders)



Box 163 Folder 1-15 16,795 through 17,547, (15 Folders)



Box 164 Folder 1-15 17,548 through 18,628, 30,001 through 30,512, (15 Folders)



Box 165 Folder 1-6 30,513 through 30,730, 40,000 through 40,039, 50,128 through 50,255, (6 Folders)


Transcripts--Volumes


Edwin H. Armstrong v. Radio Corporation of America and National Broadcasting Company, Civil Action # 1139 In the District Court of the United States for the District of Delaware


Deposition of Edwin H. Armstrong



Box 166 1949 February 14-15; March 2-4, 10, 14, 17, 24; April 4-5, 12, 15, 20-21, 25-26; May 19, 24, 26-27; June 2, 27, 29; July 8



Box 167 1949 November 10, 14-15, 17-18, 21-22, 23, 28, 30; December 2, 12-14, 16, 19; 1950 January 23; February 3,6, 10, 20, 1949 November, 1950 January


Depositions



Box 168 Joe W Morrison and Allen Barco, 1950 February 20


Box 168 Edward W. Wilby, Jack Avins and Carl W. Zemke, 1950 February 23


Box 168 Kenneth A. Chittick, 1950 June 13-14, 27, September 27, 1950 June


Box 168 Chester M. Sinnett and Arthur Floyd Van Dyck, 1950 June 27


Box 168 Stuart W. Seeley, 1950 September 29


Examinations


Box 168 Raymond Guy and O. B. Hanson, 1950 October 11


Box 168 Dominic Schmit and Clarence W. Hansell, 1950 October 19-20


Box 168 Harold O. Peterson, 1950 November 1, 3, 1950 November


Depositions


Box 168 Gano Dunn, 1950 November 3


Box 168 Harold O. Peterson, Raymond Guy and O. B. Hanson, 1950 November 30


O. B. Hanson, 1950 December 12, 14-15, 18-19, 1950 December



Box 169 1951 January 4, 10, 15, 1951 January


Box 169 Elmer W. Engstrom, 1951 January 17-18, 23-24, 1951 January


Box 169 George M. Nixon, 1951 January 25


Box 169 Clarence W. Hansell, 1951 January 31, February 1, 27-28, March 1, 1951 January


Box 169 Nils E. Lindenblad, 1951 March 12


Box 169 Murray G. Crosby, 1951 April 6, 10, 12, 1951 April


Box 169 Ralph W. George, 1951 April 11