RCA type 957 / VT-237 “acorn” triode
date: label: date made
content: ca 1937
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A small glass tube, no base, tip on top, three contact pins on one side, two on the other side, one on the bottom. Stamped: “[RCA logo] / H2E / Made in U.S.A. / JAN-957 / VT-237”. Donor’s card reads: “Triode, acorn type, made by the Radio Corporation of America about 1937. Filament type: 1.25 volts at .05 ampere. 125 volts at 2 milliamps on the plate, 5 volts negative control grid bias.” See also: https://www.radiomuseum.org/tubes/tube_957.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.325077
label: catalog number
content: 325077
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: acorn tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 1 1/4 in x 1 1/4 in x 3/4 in; 3.175 cm x 3.175 cm x 1.905 cm