United Electronics type 834 transmitting triode
date: label: date made
content: 1936
name: label: maker
content: United Electronics Company
notes: label: Description (Brief)
content: A 4-pin plastic base with two top-mounted leads, P-shaped envelope. Markings: "Made in U.S.A. / United Electronics Company / A7 / Cont. CCA-25074 / 500 Hr. Guarantee / Serial No. CL48 / C.A.A. / type / 834"; inked on stem: "CL-48", on press "73". Donor’s card reads: “Power amplifier probably made by Westinghouse for the US government during World War II. Triode type with thoriated tungsten filament 7.5 volts at 3.1 amps. Grid and plate connections are on top of the envelope. For Class C radio frequency operation 1000 volts on the plate at 90 milliamps, negative control grid bias 200 volts, radio frequency output about 85 watts up to 100 megacycles.” See also: https://www.radiomuseum.org/tubes/tube_834.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.324689
label: catalog number
content: 324689
label: accession number
content: 252994
objectType: label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 6 3/4 in x 2 3/4 in; 17.145 cm x 6.985 cm