Sylvania type 7C7 sharp cutoff pentode
date: label: date made
content: ca 1942
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: An 8-pin metal base with center post, T-shaped envelope. Envelope stamped: “Sylvania / Made in U.S.A.” Donor’s card reads: “Sharp cutoff pentode made by the Sylvania Corporation. Glass lock-in type used as a biased detector or as a radio frequency amplifier. Heater: 6.3 volts at .15 ampere. See also: https://www.radiomuseum.org/tubes/tube_7c7.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.325029
label: catalog number
content: 325029
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: 2 5/8 in x 1 1/4 in; 6.6675 cm x 3.175 cm