Western Electric type 374A power pentode
date: label: date made
content: ca 1950
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: A 7-pin plastic base with center post, T-shaped envelope. Stamped: “Western Electric / Made in U.S.A. / 374-A”. Donor’s card reads: “Power pentode made by the Western Electric Company about 1950 or before. Glass octal type used as a general purpose tube in telephony. Oxide coated filament 3 volts at .53 ampere. Plate circuit: 135 volts at 18 milliamperes, amplification factor 210, audio output 1.3 watts.”
label: Description (Brief)
content: "The 374A is a filamentary type suppressor grid power pentode. It is designed for use as an audio frequency amplifier or as an oscillator." References: https://www.westernelectric.com/s/374A.pdf; and https://www.radiomuseum.org/tubes/tube_374a.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.325202
label: catalog number
content: 325202
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 3 1/8 in x 1 1/2 in; 7.9375 cm x 3.81 cm