Telefunken type EVN171 triode in original box
date: label: date made
content: 1917
name: label: maker
content: Telefunken
notes: label: Description (Brief)
content: A German triode with horizontal grid and plate in original box. 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. Paper label reads: "Gepruft: 11.9.17.GZ / In Betrieb: [blank] / Unbrauchber: [blank]"; on box: "23 Nov 1918 / 20727". 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 the Museum of Science and Industry (Chicago)
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.271855.13
label: collector/donor number
content: 30.448
label: accession number
content: 271855
label: catalog number
content: 271855.13
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: cardboard (box material)
label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: paper (wrapping material)
label: Measurements
content: box: 2 in x 2 5/8 in x 5 3/8 in; 5.08 cm x 6.6675 cm x 13.6525 cm
label: Measurements
content: triode: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm