Archives: George H. Clark "Radioana" Collection :: Smithsonian Lemelson Center
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George H. Clark   George H. Clark Radioana Collection
c. 1880 - 1950

By Robert S. Harding, 1990
Revised by Robert S. Harding, 2001
Archives Center, National Museum of American History, Smithsonian Institution
© 2001 by the Smithsonian Institution. All rights reserved.

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NUMBERED SERIES DESCRIPTIONS 51-100

Go to Numbered Series Descriptions 1-50, 101-150, 151-233; Lettered Series Descriptions

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Series 51: AMPLIFIERS, 1903-1949 (Boxes 229-231)
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This series consists of material about amplifiers, wave changers and tuners, particularly the enhancement of reception and ease of operations of such equipment, with military and civil applications. Included are instruction manuals; bulletins; operations reports; test results; blueprints; diagrams; original sketches; graphs; photographs; and copies of papers presented. There is also an informal corporate history by Dr. De Forest; and an incomplete transcript of an appeal from Exchecquer Court of Canada (Foda-Radio Ltd., defendant) and the Canadian General Electric Company. See Series L for index to photographs in Bound Volumes.

Series 52: RECEIVING VACUUM TUBES, 1905-1949 (Boxes 231-239)
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This series consists of studies on vacuum tubes, including detector type tubes; amplifier type tubes; rectifying type tubes for receiver; grid leaks; filter system for tube circuit; sockets for tubes; adapters. It contains patents on vacuum tubes; and photographs of receiving tubes; histories; notes; list of books on vacuum tubes; types of vacuum tubes; general specifications; diagrams; drawings; sketches; extracts from newspaper articles; extracts from the U.S. Navy monthly reports; memoranda; characteristic charts; special announcements; descriptive summaries of major equipment; and reports. Also enclosed are a good number of photographs; copies of bulletins and magazines; telegraphic messages; price lists; reprints from journals and books; catalogues; data sheets; technical bulletins; correspondence; affidavits; pamphlets; charts; testimonies; and directions. See Series L for index to photographs in Bound Volumes.

Series 53: TELEVISION RECEIVERS, 1928-1948 (Box 240)
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This series contains information on the history of television receivers, including: descriptions; notes; articles; a large number of illustrations of television sets. c. 1948; drawings; diagrams; instructions; photographs of television and engineers; advertisements; news clippings; construction manuals; price lists; instructions; bulletins; pamphlets; and a directory of television receiver manufacturers, 1948.

Series 54: PHOTO-RADIO APPARATUS, 1910-1947 (Box 240)
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This series contains material on photo-radio apparatus including: photographs of people and apparatus; photographs of facsimile receivers; engineers with radio facsimile receiver-printers; operators preparing to send messages; RCA Facsimile Scanners; Jenkins Radio Weather-Map Transmitters; Jenkins Radio Weather-Map Receivers; and several photographs of Jenkins Photoradio apparatus. Also photographs of Jenkins moving picture devices; transmitting facsimile apparatus of the De Forest Company, 1932; radio transmitters made for Radio News Corporation by De Forest Radio Corporation; RCA bulletins on Radio Facsimile system; a booklet on French Facsimile System; list of Experimental Facsimile Broadcasters; a forty-four page bookl on Synchronized Reproduction of Sound and Scene, 1928; some random tests with a photo-radio transmitter and receiver; a number of newspaper and magazine clippings containing articles and illustrations; affidavits transmitted by photoradio; and some notes on facsimile transmission by the RCA Facsimile Service. See Series L for index to photographs in Bound Volumes. See also series 133.

Series 59: RADIO SCHOOLS, 1902-1945 (Box 241)
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This series contains radio school and college catalogues; bulletins; prospectus; yearbooks; annual reports; correspondence; minutes of meetings; brief histories; and data regarding government examinations for radio operator and amateur licenses. Radio schools include: the Capitol Radio Engineering Institute, Washington, D.C.; Massachusetts Radio School, Boston; Southern Wireless Institute, Baltimore; RCA Institute, Inc., New York; Radio Institute of America, New York; Philadelphia Wireless School; National Radio Institute, Washington, D.C.

Series 60: LOUDSPEAKERS, 1896-1946 (Boxes 241-242)
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This series contains material on loudspeakers including: short histories; instructions for use, installation and maintenance; articles; notes; reports; drawings; photographs and illustrations of loudspeakers and loudspeaker assembly plants; postcards; portions of magazines; booklets; catalogues; advertisements; service notes; and replacement parts list.

Series 61: INSULATORS, 1844-1943 (Boxes 242-243)
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This series consists of data on insulators and insulating materials. Brief histories; magazines; bulletins; catalogues; pamphlets; abstracts from the Navy Semi-monthly Reports; reports; photographs; correspondence; a list of important patents covering the materials and methods of manufacture of insulating materials; copies of patents; diagrams; and two books: The Insulator Book by the Locke Insulator Manufacturing Company, New York, 1919; and The Story of Bakelite by John Kimberly Mumford, New York, 1924.

Series 62: WIRES, 1906-1945 (Box 243)
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This series consists of material on wires including: conductors, conduits and connectors. It includes Litzendraht; special-shaped wire, as square cross-section; and standard resistance units for D.C., A.C., and R.F., but does not include wire used in detectors, as cat-whisker. The series also contains wire samples; specimens of standard colors for receiving leads; clippings; articles; price lists; diagrams; engineering data; correspondence; and booklets.

Series 63: MICROPHONES, 1911-1947 (Box 243)
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This series documents various types of microphones and TV accessories; the uses of the microphone by military authorities, political leaders, company executives, and broadcasters; and microphone housings in various countries. It includes brief histories; articles; notes; illustrations; photographs; drawings; correspondence; newspaper and magazine clippings; and bulletins.

Series 64: BIOGRAPHY, 1925-1948 (Box 244)
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This series consists of biographies of broadcasting, television and phonograph artists. It includes notes; newspaper and magazine clippings; interviews; illustrations; pamphlets; correspondence; a cookbook of radio personalities; portions of yearbooks; portions of the Readers Digest; bulletins; a copy of the 1930 edition of Who is Who in Radio. See also Series 4.

Series 66: ANTENNAS, 1877-1949 (Box 244-251)
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This series includes data and photographs on antennas; towers and masts; ground systems; multiple antenna systems; counterpoises; measurements of antenna constants; and measurements of ground resistance. There is a good bibliography on coil aerials and other directional aerials; lists of publications relating to loop antennas; copies of loop patents; portions of bulletins, books, magazines and newspapers; blueprints; pamphlets; reprints from journals; reports; testimonies; photographs; papers; memoranda; instructions; service notes; results of experiments; notes; specifications; diagrams; and correspondence. This series does not include wire for antennas or insulators. See Series L for index to photographs in Bound Volumes.

Series 67: TELAUTOMATICS, 1912-1944 (Box 252)
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This series contains advertisements; articles; a cartoon; clippings; correspondence, 1904, 1910, 1930, 1932; diagrams; illustrations; press releases; and a sales catalogue concerning the radio control of battleships and of torpedoes from aircraft. Of particular note is the Hammond Receiver.

Series 69: DIRECTION FINDING EQUIPMENT, RADIO COMPASSES, 1885-1948 (Boxes 252-255)
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This series contains abstracts; articles; blueprints; booklets; correspondence, 1916-1928; descriptions; diagrams; illustrations; instruction sheets; maps; newsclippings; operating instructions; photographs; reports; sales catalogues; sketches; studies; elementary and technical notes; and wiring diagrams of direction finding equipment. Among the types covered are the pilot cable; radio compass; radio range; Loran; Shoran; Dellini Tosi system; and transmitting types of direction finders, such as Becon. See Series L for index to photographs in Bound Volumes.

Series 71: AIRCRAFT TRANSMITTERS, 1908-1947 (Box 256)
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This series contains abstracts; articles; blueprints; aircraft circuit diagrams; booklets; specification catalogues and manuals; company memoranda; correspondence, 1917; histories; illustrations; newsclippings; periodical clippings; photographs; reports; sketches; technical drawings; technical information and service data for aircraft radio transmitting equipment. Includes combined transmitters and receivers.

Series 72: FIELD OR PORTABLE TRANSMITTERS, 1901-1941 (Boxes 257-260)
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This series contains Navy and Army pack sets; combined transmitters and receivers; car sets, etc. It consists of brief histories of portable field sets; descriptions of portable sets; notes; diagrams; drawings; testimonies; notes on experiments; specifications; correspondence, 1911-1916; abstracts of contracts and payments for portable radio sets; The series also contains bulletins; pamphlets; booklets; newspaper and magazine clippings; photographs; data on U.S. Army Signal Corps Battalion-Regiment Set boxes; abstracts from U.S. Navy Monthly Radio Reports; and abstracts from instruction books. See Series L for index to photographs in Bound Volumes.

Series 73: MOBILE RADIO SYSTEMS, 1884-1946 (Box 260)
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This series contains advertisements for radios and accessories; articles; booklets; correspondence, 1914-1944; news clippings; periodical clippings; photographs; and sales literature concerning mobile radio systems (transmitters and receivers), for automobiles, trucks, trains, and airplanes. This material details connections via dispatcher and AT&T exchanges. This material does not include information on military packs or portable sets, walkie talkie mobile television and broadcasting sets.

Series 74: RADIO FREQUENCY MEASURING INSTRUMENTS, 1903-1946 (Boxes 261-262)
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This series contains information about high-frequency, indicating and measuring instruments. It includes data and photos on hot-wire and hot-band ammeters (radiation meters); wave meters and decremeters; thermal couples; stroboscopes; and oscillographs. News clippings from books, newspapers, and magazines; descriptions; instructions; notes; Special Radio Reports; illustrations of apparatus; bulletins and portions of bulletins; pamphlets; catalogues; lectures; patents; blueprints; diagrams; graphs; and drawings. Transmitter adjustments and methods of tuning by wave meter are covered by Series 117, Technical Tables.

Series 75: LABORATORY TESTING METHODS AND SYSTEMS, 1891-1945 (Box 263)
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This series contains advertisements; articles; blueprints of apparatus; booklets; charts; coordination paper; correspondence, 19ll-1935; Experiment Reports; graphs; instruction books; news clippings; operating instructions; parts lists; periodical clippings; photographs; reports; sales literature; scientific papers of the Bureau of Standards; service notes; standards; technical information booklets; and tuner tests for all individual apparatus not listed under separate classifications.

Series 76: AIRCRAFT RECEIVERS, 1917-1941 (Box 264)
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This series contains advertisements; bulletins; data; illustrations; instructions; instruction books; news clippings; periodical clippings; service notes; sketches; technical information booklets; and training manuals of aircraft receivers not part of a combined transmitter and receiver for aircraft use. Also includes special detectors for airplane use; special amplifiers for airplane use; shock proof housing or holders for detector, amplifier, and receiver.

Series 77: FIELD PORTABLE RECEIVERS, 1906-1922 (Box 264)
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This series contains blueprints; correspondence, 1909-1922; graphs; instructions; news clippings; photographs; schematic diagrams; sketches; specifications; and tests of military type field portable receivers which are not a specific part of a combined transmitter and receiver.

Series 78: SPARK TRANSMITTER ASSEMBLY, 1909-1940 (Box 264-267)
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This series contains abstracts of contracts; blueprints; correspondence, 1909-192l; diagrams; drawings; illustrations; instructions; instruction books; operating and installation instructions; parts lists; periodical clippings; photographs; reports; specifications; technical information booklets; and tests for spark transmitters. Individual parts of a spark transmitter are bolted to a separate housing or frame to form a complete unit which also may include sets.

Series 79: SPARK TRANSMITTER SYSTEM, 1900-1945 (Boxes 267-268)
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This series contains information relevant to complete spark transmitter systems, consisting of transmitter assembly as described in Series 78, plus other associated parts, e.g. receiver, motor generator, send-receive switch, etc. This series refers to the hardware, not the installed system only. When installed, it falls under Series 6 - 9. The series includes: abstracts; articles; bid summaries; blueprints; contracts; correspondence, 1911-1923; instructions and descriptions; diagrams; drawings; illustrations; news releases; notes; periodical clippings; photographs; sketches; and testimonies.

Series 82: FIRSTS IN RADIO, n.d.
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This series consists of Clark's own typed notes; correspondence, 1935-1949; news clippings; news releases (RCA's "firsts"); periodical clippings; and photographs of "Firsts" in radio: what, when, where and how. Cross-indexed in the appropriate file for the event, person, or apparatus being considered.

Series 85: DISTANCE RECORDS AND TESTS, 1898-1940 (Box 269)
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This series contains advertisements; articles; correspondence, 1906--1926; drawings; graphs; illustrations; maps; messages from ships to shore; newsclippings; news release; periodical clippings; photographs; reports; and tests, measurements, and experiments of receiving stations or receivers, especially in terms of distance covered. See Series L for index to photographs in Bound Volumes.

Series 87: PHOTOGRAPHS OF RADIO EXECUTIVES, AND TECHNICAL TYPES, 1857-1952 (Boxes 270-276)
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This series contains photographs and news clippings of groups and individual radio people, such as executives, inventors and operators. For example, David Sarnoff (Box 378=0001-0320). See also Series M for list of photographs of Sarnoff arranged by document numnber. It does not include photographs of broadcast, television, and phonograph artists and stars. These are filed in Series 143.

See Series K for index to many photographic prints in this Series.

Series 90: RADIO TERMS, 1857-1939 (Boxes 274-276)
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This series contains literature regarding radio terms, alphabetically listed, with definitions. Included are abstracts; articles; correspondence; data regarding wireless terminology; glossary of terms published in the yearbooks of 1913 - 1915; list of radio terms and classification numbers; news clippings; notes; reports of committees on standardization, the Institute of Radio Engineers, for 1913, 1915, 1922, 1926, 1927, and 1928; standardization rules; and technical information booklets.

Series 92: STATIC PATENTS AND STATIC REDUCING SYSTEMS, 1891-1946 (Boxes 276-278)
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This series contains material that describes apparatus, systems, methods and measurements of static-reducing devices. There is data as to form of static, including "term interference", interference due to lightning, and interference due to other natural causes. Included are abstracts of letters; abstracts from USN semi-monthly Radio Reports, August, 1919-October 1920; articles; blueprints; booklets; brief histories; claims; several copies of communication from the International Union of Scientific Radio Telegraphy; correspondence; data regarding Rogers and his underground antenna; descriptions; diagrams; experiments reports; extracts from Yearbook of W.T. & T., 1916, from New York Herald, 1899, and from Radio Report, 1919; graphs; illustrations; litigations; manuscripts; memoranda; minutes; news clippings notes; pamphlets; parts catalogue; patents; a few photographs; reports; reprints from journals; and tests. Box 385 deals specifically with static patents, and box 386 treats static reducing systems with a focus on Weagant's work.

Series 93: LOW FREQUENCY INDICATING DEVICES, 1904-1946 (Box 278)
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This series concerns methods of recording radio signals on paper, wax cylinders, and other media. Advertisements, blueprints, bulletins, charts, correspondence, data on radio signals and on recorder tapes, drawings, instructions, and instruction books, journals, clippings, reports, sales bulletins, service notes and test results. Includes ink and other recorders and listener and audience recorders.

Series 95: ARTICLES ON RADIO SUBJECTS, 1891-1945 (Boxes 279-287)
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This series contains speeches by David Sarnoff (Box 390); transcripts of broadcasts by Orestes H. Cladwell and Gordon Nugent, 1941 (Box 391); and speeches and writings of other radio experts.

Series 96: RADIO IN EDUCATION, 1922-1939 (Box 287)
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This series contains abstracts of speeches; articles; booklets; brochures; correspondence, 1922-1943; illustrations; news clippings; news releases; periodical clippings; and photographs regarding radio as a factor in education.

Series 98: SPECIAL FORMS OF BROADCASTING, 1921-1943 (Box 288)
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This series contains information on special forms of broadcasting e.g. church broadcasting; broadcasts for political purposes; for advertising; and for sales promotion, but does not include school broadcasts. Included are news clippings; notes; periodical clippings; photographs; a booklet; and some correspondence.

Series 99: HISTORY OF LIFESAVING AT SEA BY RADIO, 1902-1949 (Boxes 288-289)
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This series contains abstracts; articles; booklets; correspondence, 1914-1919; 1930-1943; descriptions; illustrations; news clippings; news releases; periodical clippings; and photographs.

Series 100: HISTORY OF NAVAL RADIO, 1888-1948 (Boxes 289-297)
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This series consists of material pertaining to the history of radio work in the U.S. Navy. It contains history and general description of systems, apparatus, and usages. There are specific descriptions under appropriate series, as Series 46 for code receivers, Series 6 for shore stations, Series 7 for ship installations, Series 72 for portable sets, Series 66 for antennas and masts, etc.

The material in Series 100 consists of copies of affidavits; abstracts of instructions from Monthly Radio Reports; agreements; articles; blueprints; booklets; catalogues; charts; contracts; correspondence; data regarding transmitting condensers, Interdepartmental Radio Board, USNM - U.S. Army radio receiving system; descriptions; diagrams; directions; graphs; histories including G.H. Clark's "The Development of Radio in the U.S. Navy" (493 pages) "Radio in War and Peace" (Box 408D); instructions; job order; portions of journals; record of litigation; memoranda; messages; news clippings; notes; pamphlets; papers presented; patent copies; photographs of stations, men apparatus, and equipment; proceedings in the US. Senate; releases; reports; requisitions; specifications; statements and testimony; and US. Civil Service Examinations for Radio Aid 1919, for Radio Instructor 1920, and for Expert Radio Aid 1914 and 1919.

See Series L for index to photographs in Bound Volumes.

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Last Update: 16 Jun 2004

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