RCA type 842 / VT-72 triode
date: label: date made
content: ca 1930
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 4-pin plastic base with domed envelope. Stamped on base: RCA logo; on envelope: “842”. Donor’s card reads: “Triode made by the General Electric Company for the Radio Corporation of America. Used as an audio frequency amplifier and modulator. Tube first made in 1927. Thoriated tungsten filament: 7.5 volts at 1.25 amperes. Plate 425 volts maximum, plate dissipation 12 watts, output about 10 watts of audio.”
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.324783
label: catalog number
content: 324783
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: 5 1/4 in x 2 in; 13.335 cm x 5.08 cm