Western Electric type 104D vacuum triode
date: label: date made
content: ca 1921
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: A metal shell base with four pins and plastic insulator. Double V filament. G-shaped envelope with red painted tip. Marked: Western Electric / Made in U.S.A. / 104-D / Pat. in U.S.A. 1-15-07 / 2-18-08 / 10-17-16 / 12-14-16 / 12-17-18 / 1-27-20 / 10-5-20 / Pats. Applied For". Stamped: "473709". Reference: https://www.radiomuseum.org/tubes/tube_104d.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 Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323316
label: catalog number
content: 323316
label: accession number
content: 241556
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 1/4 in x 2 1/4 in; 10.795 cm x 5.715 cm