CBS-Hytron type 3-D-21-A beam tetrode
date: label: date made
content: ca 1942
name: label: maker
content: CBS Hytron
label: maker
content: Hytron Corporation
notes: label: Description (Brief)
content: A plastic 8-pin base with center post, top contact, domed envelope. Base stamped: with US Navy logo; envelope: “3D21A”. Donor’s card reads: “Beam tetrode made by CBS-Hytron for the US government during World War II. Used as a pulse amplifier. Heater: 6.3 volts at 1.7 amperes.” See also: https://www.radiomuseum.org/tubes/tube_3d21a.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.324651
label: catalog number
content: 324651
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: tetrode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 in x 1 3/4 in; 12.7 cm x 4.445 cm