RCA Cunningham "Radiotron" type 01A vacuum triode
date: label: date made
content: ca 1948
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 4-pin plastic base with tipless, domed envelope, internal silvering. Stamped on base: "RCA Cunningham / Radiotron"; on glass: "Made / 01A / in U.S.A.". Donor card reads: "Triode made by the Radio Corporation of America and marketed under the RCA/GE/Cunningham arrangement. This tube is one of the last productions models made. This design began with the UV-201... which was part of the original RCA line of tubes in 1922, then follows some of the early "A" designs ... and finally this model which probably dates from the 1940s. Thoriated tungsten filament for battery operation, 5 volts at .5 ampere. When used as a Class A amplifier, 135 volts on the plate, 3 mA current, with a 9 volt negative control grid bias" See also: https://www.radiomuseum.org/tubes/tube_01a.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.324378
label: catalog number
content: 324378
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 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm