Cunningham type CX112 vacuum triode
date: label: date made
content: ca 1926
name: label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A vacuum triode. A 4-pin plastic base with S-shaped envelope. Base stamped: "Cunningham / CX-112". Donor's card reads: "Triode originally made by Westinghouse for the Radio Corporation of America. Announced in the fall of 1925. Intended for use as an audio output tube to drive a loud speaker, this tube was also an excellent detector. Oxide coated filament, 5 volts at .5 ampere. When operated at maximum rating, 157 volts on the plate, 10.5 volts negative grid bias, this tube would produce 195 milliwatts of undistorted power." See also: https://www.radiomuseum.org/tubes/tube_cx112.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.324383
label: catalog number
content: 324383
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