Western Electric type 308-B triode
date: label: date made
content: ca 1943
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: A 4-pin metal base wit T-shaped envelope. Stamped: “6305” on envelope, “Western Electric / Made in U.S.A.” Donor’s card reads: “Triode made by the Western Electric Company for the US government during World War II. Designed for use as an audio frequency amplifier or modulator. Thoriated tungsten filament. Used as a Class A audio amplifier with 1500 volts at 135 milliamps on the plate, 44 volt negative grid bias for an output of 50 watts. As a Class B amplifier with 1500 volts at 25 milliamps on the plate, tis tube will deliver 475 watts of audio power.” See also: https://www.radiomuseum.org/tubes/tube_308b.html.
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.325228
label: catalog number
content: 325228
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: 12 1/2 in x 3 1/2 in; 31.75 cm x 8.89 cm