Edwin H. Armstrong papers, 1886-1982, bulk 1912-1954
295.7 linear feetProfessional 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
Park Benjamin papers, 1645-1925
9.24 linear feetCorrespondence, manuscripts of poems, and manuscripts of lectures by Benjamin. The correspondence consists of original letters of Benjamin, typescript and photostatic copies of Benjamin letters in other libraries, and letters to Benjamin from some of his literary contemporaries including Paul Hamilton Hayne, Willis Gaylord Clark, John Lothrop Motley, and Fitz-Greene Halleck. Many of the letters relate to Park Benjamin's lecture tours. There are other family letters and many documents relating to the Benjamin family,and two letterbooks of John Lothrop Motley. Also, a large amount of genealogical material of the Benjamin family, and its related families from the 16th century to the present day. There are also financial records, monographs, clippings, and photographs.
Peter Wellington Alexander papers, 1835-1910
30 linear feetCorrespondence, manuscripts, documents, and newspapers. These include over four hundred letters to Alexander, as well as miscellaneous letters and telegrams; some of his manuscripts and notes; business records of his law firm; military documents of the western divisions of the Confederate Army; copybooks and letter books; and complete and partial newspapers and clippings from the various Southern newspapers (in particular THE SAVANNAH REPUBLICAN, the DAILY DISPATCH of Richmond, and the ADVERTISER AND REGISTER of Mobile) which carried Alexander's dispatches.
Limit your search
- Aiken, George D. (George David), 1892-19841
- Alexander, Peter Wellington, 1825-18861
- Angell, Norman, 1874-19671
- Arendt, Hannah, 1906-19751
- Armstrong, Edwin H (Edwin Howard), 1890-19541
- Austin, Warren Robinson, 1877-19621
- Baker, Newton Diehl, 1871-19371
- Baldwin, Roger N (Roger Nash), 1884-19811
- Barbour, W. Warren (William Warren), 1888-19431
- Baruch, Bernard M. (Bernard Mannes), 1870-19651
Current results range from 1645 to 2008
- Rare Book and Manuscript Library4
- Butler, Nicholas Murray, 1862-19472
- Hoover, Herbert, 1874-19642
- La Guardia, Fiorello H (Fiorello Henry), 1882-19472
- Adams, John Quincy, 1767-18481
- Addams, Jane, 1860-19351
- Advertiser and Register.1
- Aiken, George D. (George David), 1892-19841
- Alexander Peter Wellington1
- Alexander, A[lmerine] M.1