Vacuum Tube Systems
name: label: Collection Creator
content: Clark, George Howard, 1881-1956
setName: label: See more items in
content: George H. Clark Radioana Collection
unitdate: label: Date
content: 1902-1939
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0055, Series 130
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents note
content: Series 130 on vacuum tube transmitting and receiving systems consists of articles; booklets; correspondence, 1937; schematic diagrams; graphs; and news clippings. It includes general descriptions of systems and descriptions of systems designated by the name of the inventor, such as the "De Forest system". This series includes both code and speech systems, though the latter are more minutely described in Series 132.