De Forest, Lee 1873-1961 creator mixed material monographic eng 375 4 2 1.6 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. Open to research. 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 marchese Marconi, Guglielmo 1874-1937 Yale University Students Electronics Inventions Preparatory schools Radio Sound Recording and reproducing Sound Transmission Wireless communication systems Inventors Radio pioneers mm 78018168 hdl:loc.mss/eadmss.ms998006 hdl:loc.mss/eadmss.ms998006.3 http://hdl.loc.gov/loc.mss/eadmss.ms998006 http://hdl.loc.gov/loc.mss/eadmss.ms998006.3 Open to research. DLC 780803 20260227111623.0 mm 78018168