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Edwin H. Armstrong papers, 1886-1982, bulk 1912-1954 295.7 linear feet 297 boxes, 2 flat folders, 30 phono discs, 10 tape reels
- Creator
- Armstrong, Edwin H (Edwin Howard), 1890-1954
- Abstract Or Scope
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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
- Collection Context
James O. Brown Associates records, 1927-1992 231 linear feet 456 boxes
- Creator
- James O. Brown Associates
- Abstract Or Scope
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The files of the literary agency include correspondence with authors, publishers, and other agents and deal with editing and publishing, serial rights, reprints, dramatic rights, translations and foreign rights, promotion, copyright registration, contracts, royalty statements, tax statements, and other financial materials, and the personal affairs of many clients. Among the cataloged correspondents are: Louis S. Auchincloss, Erskine Caldwell, Herbert Gold, Alberto Moravia, Eleanor Roosevelt, and Rebecca West.
- Collection Context