Receiving Vacuum Tubes
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: 1905-1949
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0055, Series 52
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents note
content: Series 52 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.