RCA type UV201 "Radiotron" triode
date: label: date made
content: ca 1921
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: RCA "Radiotron" UV-201 triode, brass 4-pin base with tipped glass envelope. Donor card reads: "Made for the Radio Corporation of America in 1920, or there about. Of original design but of later manufacture than [catalog number 324356]. A so-called "hard tube" intended for use in amplifier and oscillator circuits. For its purpose, the UV-201 was much smoother in operation than its companion detector, the UV-200. Tungsten filament: 5 volts at 1 ampere. Used to a limited extent by amateurs for low powered transmitters in Hartley and Colpitts circuits, with as many as four tubes in parallel."
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.324373
label: catalog number
content: 324373
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: 4 1/4 in x 1 3/4 in; 10.795 cm x 4.445 cm