RCA type 3S4 power pentode
date: label: date made
content: ca 1941
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: "3S4”. Donor’s card reads: “Power pentode made by the Radio Corporation of America for use in the output stage of light-weight compact portable battery-operated radio equipment. Filament type: 1.4 volts at .1 ampere. Maximum of 90 volts on the plate, the tube will deliver .27 watt of audio power.” See also: https://www.radiomuseum.org/tubes/tube_3s4.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.324900
label: catalog number
content: 324900
label: accession number
content: 252994
label: model number
content: 3-S-4
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 1/4 in x 5/8 in; 5.715 cm x 1.5875 cm