General Electric / RCA type UV863 "Radiotron" transmitting triode
date: label: date made
content: 1928
name: label: associated user
content: unknown
label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A transmitting triode with large heat-sink, two stranded copper leads with ceramic-bead insulators, top-tipped, side contact. Stamped on top: "[RCA logo] Radiotron / 863 / Made in U.S.A." Donor’s card reads: “Water cooled triode made by General Electric for the Radio Corporation of America and used in the WCAU transmitter from 1928 to 1930. Used as a Class C radio frequency amplifier to drive (in push-pull circuit) two type UV-862 radio frequency output tubes in a 50 kw broadcast transmitter. For Class C operation: 10000 volts at 1 amp on the plate, for an output of 6600 watts per tube up to 1.5 megacycles. Tungsten filament: 22 volts at 52 amperes. This tube ran for 24655 ours in the WCAU transmitter before filament emission dropped below a satisfactory point.”
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.324703
label: catalog number
content: 324703
label: accession number
content: 252994
objectType: label: Object Name
content: transmitting triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall (w/o leads): 19 in x 6 1/2 in x 4 in; 48.26 cm x 16.51 cm x 10.16 cm