Western Electric type 216A vacuum triode
date: label: date made
content: 1922
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Western Electric type 216A high-vacuum triode amplifier - oscillator. A 4-pin base with tipped G-shaped envelope. Marked: "Western Electric / Made in U.S.A. / 216 A / Pat. in U.S.A. / 1-15-07 Two Patents / 2-18-08 10-17-16 12-19-16 12-17-18 6-24-19 1-27-20 / Pats Applied for"; paper label around neck reads: "Licensed for use only as part of the Western Electric Loud Speaking Telephone Outfit." Reference: https://www.westernelectric.com/s/216A.pdf; Tyne, "Saga of the Vacuum tube," pages 291-293.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Susan Horle
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313985
label: catalog number
content: 313985
label: accession number
content: 195337
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 in x 2 1/4 in; 10.16 cm x 5.715 cm