Western Electric type 211E transmitting triode
date: label: date made
content: ca 1926
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: An air-cooled transmitting triode with a 4-pin base, tipped T-shaped envelope. Marked: "Western Electric / Made in U.S.A. / 211-E / Pat. in U.S.A. / 12-19-16 / 12-17-18 / 5-3-19 / 6-24-19 / 1-27-20 / 6-13-22 / 10-24-22 / 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". Serial number "57397" on envelope." References: https://www.radiomuseum.org/tubes/tube_211e.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323153
label: catalog number
content: 323153
label: accession number
content: 250988
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