US Army / Ken-Rad type 12AH7GT / VT207 medium-Mu twin triode
date: label: date made
content: 1941
name: label: maker
content: Ken-Rad Tube and Lamp Corporation
notes: label: Description (Brief)
content: An 8-pin plastic base with center post. Mica insulator. T-shaped glass envelope. Printed on base: "Ken-Rad / Made in U.S.A. / US Army / VT-207". Donor’s card reads: “Medium-Mu twin triode made by Ken-Rad Tube and Lamp Company of Owensboro, Ky. Glass octal type used as audio amplifier in radio equipment. Heater type: 12.6 volts at .15 ampere. Maximum plate voltage 150 at 7.6 milliamps, with a 6.5 volt negative control grid bias. Amplification factor 16.” See also: https://www.radiomuseum.org/tubes/tube_12ah7gt.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 Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325257
label: catalog number
content: 325257
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Object Name
content: double triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 3 in x 1 1/4 in; 7.62 cm x 3.175 cm