John Hays Hammond papers,
Hammond, John Hays, 1888-1965.
John Hays Hammond papers, 1908-1965 (bulk 1912-1953). - 6,000 items. 19 1 containers plus oversize. 7 linear feet. - Arranged in 3 series. Series 1: Notebooks, 1912-1918; Series 2: General Case File, 1908-1965; and Series 3: Photographs, 1919-1955.
Open to research.
Correspondence, notebooks, technical papers, legal briefs, chronologies, printed matter, sketches, annotated photographs, and other papers relating to Hammond's scientific career and inventions. Subjects include Hammond's basic experiments in radio control, frequency modulation, intermediate frequency, triode electron tube, and the Elmer Ambrose Sperry dispute on inertial guidance patents. Correspondents include Ernst Fredrik Werner Alexanderson, Alexander Graham Bell, Lee De Forest, Irving Langmuir, and Nikola Tesla.
Inventor and scientist.
Collection material in English.
Finding aid available in the Library of Congress Manuscript Reading Room and at http://hdl.loc.gov/loc.mss/eadmss.ms010036.
mm 78024703
Alexanderson, Ernst Fredrik Werner, 1878-1975 --Correspondence.
Bell, Alexander Graham, 1847-1922 --Correspondence.
De Forest, Lee, 1873-1961 --Correspondence.
Langmuir, Irving, 1881-1957 --Correspondence.
Sperry, Elmer Ambrose, 1860-1930.
Tesla, Nikola, 1856-1943 --Correspondence.
Electron tubes.
Inertial navigation systems--Patents.
Radio--Research.
Radio frequency modulation.
Inventors.
Scientists.
John Hays Hammond papers, 1908-1965 (bulk 1912-1953). - 6,000 items. 19 1 containers plus oversize. 7 linear feet. - Arranged in 3 series. Series 1: Notebooks, 1912-1918; Series 2: General Case File, 1908-1965; and Series 3: Photographs, 1919-1955.
Open to research.
Correspondence, notebooks, technical papers, legal briefs, chronologies, printed matter, sketches, annotated photographs, and other papers relating to Hammond's scientific career and inventions. Subjects include Hammond's basic experiments in radio control, frequency modulation, intermediate frequency, triode electron tube, and the Elmer Ambrose Sperry dispute on inertial guidance patents. Correspondents include Ernst Fredrik Werner Alexanderson, Alexander Graham Bell, Lee De Forest, Irving Langmuir, and Nikola Tesla.
Inventor and scientist.
Collection material in English.
Finding aid available in the Library of Congress Manuscript Reading Room and at http://hdl.loc.gov/loc.mss/eadmss.ms010036.
mm 78024703
Alexanderson, Ernst Fredrik Werner, 1878-1975 --Correspondence.
Bell, Alexander Graham, 1847-1922 --Correspondence.
De Forest, Lee, 1873-1961 --Correspondence.
Langmuir, Irving, 1881-1957 --Correspondence.
Sperry, Elmer Ambrose, 1860-1930.
Tesla, Nikola, 1856-1943 --Correspondence.
Electron tubes.
Inertial navigation systems--Patents.
Radio--Research.
Radio frequency modulation.
Inventors.
Scientists.