Westinghouse type WD-12 triode
date: label: date made
content: 1922
name: label: maker
content: Westinghouse Electric & Manufacturing Co.
notes: label: Description (Brief)
content: RCA type WD-12 triode, brass bayonet base shell with 4-pins (short), T-shaped tipped envelope, lime getter. Donor card reads: "Triode made by the Westinghouse Company and sold by the Radio Corporation of America for use in broadcast receivers having the filaments lighted by dry cells. Similar electrically to the WD-11 except that the WD-12 was mounted in a standard 4-pin Shaw type base. Generally a very unsatisfactory tube because of the fluctuation of the battery voltage. These tube lasted only a few hours in operation, and in 1922 cost $8.00 each. Superceded in 1923 by the UV-199 three volt battery operated tube." See also: See also: https://www.radiomuseum.org/tubes/tube_wd12.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.324358
label: catalog number
content: 324358
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 in x 1 3/8 in; 10.16 cm x 3.4925 cm