Telefunken type EVN171 triode
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. 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. Stamped on envelope: "Telefunken / DRP / type EVN171 / No148444/4". 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.320892
label: catalog number
content: 320892
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: Measurements
content: overall: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm