General Electric type 838 triode
date: label: date made
content: ca 1943
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: Metal 4-pin base with T-shaped envelope. Printed on base: "JAN-CG-838 / Made in U.S.A." Donor’s card reads: “Triode made by the General Electric Company for the US government during World War II. A high Mu three element tube designed for use with a zero grid bias, Class B audio amplifier. The grid id designed so that the amplification factor varies with the amplitude of the input signal. This factor is of greatest value in the design of Class B amplifiers since it facilitates their ability to give high output with little distortion. The 838 tube may be used at radio frequencies up to 30 megacycles at full power. Filament: 10 volt at 3.25 amperes. Plate: 1250 volts for an output of 260 watts audio power.”
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324769
label: catalog number
content: 324769
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 2 1/4 in; 19.05 cm x 5.715 cm