RCA type U860 “Radiotron” power tetrode
date: label: date made
content: ca 1937
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A G-shaped glass envelope with a 4-pin metal base on one end, copper leads emerging from the opposite end, and two copper leads emerging from the side. Air cooled. Stamped on base: "RCA Radiotron / UX 860 / Licensed only to / extent covered by / [?] of sale". Donor’s card reads: “Power tetrode made by the Radio Corporation of America. This tube is a modern version of [catalog number ] and dates from about 1937. For use at full power up to 30 megacycles. Generally used as a Class C radio frequency amplifier in radio transmitters. Thoriated tungsten filament: 10 volts at 3.25 amperes. For Class C operation: 3000 volts on the plate, 300 volts on the screen, 150 volt negative control grid bias, for an output of 160 watts from a 7 watt drive.” See also: https://www.radiomuseum.org/tubes/tube_ux860.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.324631
label: catalog number
content: 324631
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: tetrode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 8 1/2 in x 6 in x 3 1/2 in; 21.59 cm x 15.24 cm x 8.89 cm