Telefunken transmitting triode
date: label: date made
content: ca 1918
name: label: maker
content: Telefunken
notes: label: Description (Brief)
content: A double-ended G-shaped tube with one braided copper lead emerging from the top and three from the bottom. No extant maker's marks. Donor’s card reads: “Triode transmitting tube supposedly made by the Telefunken Company of Germany about the time of World War I. Given to [me] by Wayne B. Wood of Pitman, NJ., in 1957. Its history on amateur radio goes back to 1924 at which point the trail fades away. Examined by Howard Schrader of Princeton. After taking all factors into consideration, he stated his belief that it’s a Telefunken origin around WW1. The unusual construction was in some respects that of Telefunken design of that period. Its unusually rugged construction eliminated its being a laboratory model.”
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324759
label: catalog number
content: 324759
label: accession number
content: 252994
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: 12 in x 5 in; 30.48 cm x 12.7 cm