Cunningham type CX112A vacuum triode
date: label: date made
content: 1927
name: label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A 4-pin plastic base with S-shaped envelope. Base stamped: "Cunningham / CX-112-A". Donor's card reads: "Triode made for the Radio Corporation of America in 1927 for use as an audio amplifier in battery operated home radio receivers. Similar to the UX-112 (catalog number 324383) except that the filament current is reduced from .5 to .25 ampere. Oxide coated filament. Probably made by General Electric, but the basic design of the 112 was by Westinghouse." See also: https://www.radiomuseum.org/tubes/tube_cx112a.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.324384
label: catalog number
content: 324384
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