Sylvania type 3-B-7 / 1291 twin triode
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: An 8-pin metal base with center post, T-shaped envelope. Donor’s card reads: “Double triode made by the Sylvania Corporation. Lock-in type, designed for ultrahigh frequencies. May be used in push-pull Class C radio frequency amplifier service up to 125 megacycles with an output of 1.4 watts. Coated filament, 1.4 volts at .22 ampere.” See also: https://www.radiomuseum.org/tubes/tube_3b7.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.325143
label: catalog number
content: 325143
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Object Name
content: dual triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 3/4 in x 1 1/8 in; 6.985 cm x 2.8575 cm