Telefunken type EVN171 triode and socket
date: label: date made
content: ca 1917
name: label: maker
content: Telefunken
notes: label: Description (Brief)
content: A German triode with horizontal grid and plate in socket. A 4-pin plastic base (3 banana pins and one hollow pin), horizontal disc-type assembly, tipless T-shaped envelope. Filament: 2.7 volt, 0.5-0.55 ampere. Anode: 80 - 100 volts. No legible markings on tube or socket. Reference: Tyne, "Saga of the Vacuum Tube," pages 248-250; https://www.radiomuseum.org/tubes/tube_evn171.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.320886
label: catalog number
content: 320886
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: Physical Description
content: plugs in (socket connector/connecting technique)
label: Measurements
content: overall: 5 in x 2 1/4 in; 12.7 cm x 5.715 cm
label: Measurements
content: triode1.25: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm
label: Measurements
content: socket: 2 1/4 in; 5.715 cm