Western Electric type 211D triode
date: label: date made
content: ca 1925
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: A 50 watt amplifier - oscillator - modulator triode with 4-pin base, T-shaped envelope. Marked: "163388", and "Western Electric / Made in U.S.A. / 211-D / Pat. in U.S.A. / 12-19-16 12-17-18 5-13-19 6-24-19 1-27-20 6-13-22 10-14-22 5-29-23 1-8-24 4-22-24 5-5-25 8-7-23 Two pats / 6-16-25 Two Pats. / Pats. Applied For." Reference: https://www.westernelectric.com/s/211D.pdf.
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.322680
label: catalog number
content: 322680
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 2 in; 19.05 cm x 5.08 cm