02375cpcaa2200469 a 4500 mm 78018168 DLC 20260227111623.0 cr ||||||||||| 780803|||||||||||| eng mm 78018168 ms 59000025 DLC DLC DLC dacs S lcmd De Forest, Lee, 1873-1961. Lee De Forest papers, 1884-1955. 375 items. 4 containers. 2 microfilm reels. 1.6 linear feet. Open to research. Correspondence, diaries (1891-1949; 23 volumes), technical notes, manuscripts of essays and poetry, biographical sketches, clippings, printed material, memorabilia, schematics, sketches, and photographs relating to De Forest's inventions in radio and electronics and their effect on sound recording and transmission, efforts to exploit his discoveries through various business ventures, and his competition with marchese Guglielmo Marconi in the field of wireless communication. Also includes material concerning his activities as a student in preparatory school and at Yale University. Microfilm edition of diaries available, no. 17,174. Microfilm produced from originals in the Manuscript Division. Washington, D.C. : Library of Congress Photoduplication Service, 1977. Radio pioneer and inventor. Collection material in English. Finding aid available in the Library of Congress Manuscript Reading Room and at http://hdl.loc.gov/loc.mss/eadmss.ms998006 Marconi, Guglielmo, marchese, 1874-1937. Yale University Students. Electronics. Inventions. Preparatory schools. Radio. Sound Recording and reproducing. Sound Transmission. Wireless communication systems. Inventors. itoamc Radio pioneers. itoamc Finding aid http://hdl.loc.gov/loc.mss/eadmss.ms998006 Finding aid (PDF) http://hdl.loc.gov/loc.mss/eadmss.ms998006.3 39826 39826