RCA type 835 power triode
date: label: date made
content: ca 1943
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 4-pin metal base, T-shaped envelope, getter stain. Stamped on envelope: “Made in / U.S.A. / RCA Electron Tube”. Donor’s card reads: “Power triode made by the Radio Corporation of America for the US government during World War II. Similar to the type 211 triode. First made about 1938. Thoriated tungsten filament 10 volts at 3.25 amperes, used as an audio frequency amplifier and modulator and as a radio frequency amplifier and oscillator at frequencies up to 20 megacycles. As a Class C radio frequency amplifier with 1250 volts at 175 milliamps on the plate, negative control grid bias 400 volts, this tube will deliver about 110 watts of radio frequency 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.325051
label: catalog number
content: 325051
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