Western Electric type 205B vacuum triode
date: label: date made
content: ca 1920
name: label: maker
content: Western Electric
label: maker
content: Western Electric
notes: label: Description (Brief)
content: A brass 4-pin base, plastic insulator, tipped G-shaped envelope. Base stamped: "Western Electric / Made in U.S.A. / 205B / Pat in USA / 1-15-07 2-18-08 / 4-27-15 10-1716 / 12-19-16 12-17-18 / 1-27-20 5-25-20 [stamped over]; paper label: "WE-E". Civilian version of military VT-2 triode. Transmitting tube with plate voltage of 300. Produced from about 1918 to 1924. References: Tyne, "Saga of the Vacuum Tube," page 287; https://www.radiomuseum.org/tubes/tube_205b.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.320964
label: accession number
content: 241556
label: catalog number
content: 320964
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 2 1/4 in; 10.795 cm x 5.715 cm