RCA type 3A4 power amplifier pentode
date: label: date made
content: ca 1942
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 7-pin glass base with tipped T-shaped envelope. Miniature tube. Stamped: “Electron / Tube [RCA logo]”. Donor’s card reads: “Power amplifier pentode made by the Radio Corporation of America. Designed for use in light-weight compact portable equipment as a radio frequency power amplifier. Capable of delivering 1.2 watts at 10 megacycles. Center tapped filament operated at either 1.4 or 2.8 volts at .2 or .1 amperes, respectively.” See also: https://www.radiomuseum.org/tubes/tube_3a4.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.325284
label: catalog number
content: 325284
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 1/8 in x 3/4 in; 5.3975 cm x 1.905 cm