Heintz & Kaufman type 24 "Gammatron" transmitting triode
date: label: date made
content: ca 1925
name: label: maker
content: Heintz & Kaufman Ltd.
notes: label: Description (Brief)
content: A 4-pin ceramic base with top contact, T-shaped envelope. Stamped on envelope: "Gammatron / 24 / Heintz - Kaufman". Donor’s card reads: “Gammatron 24 made by Heintz & Kaufman Ltd., of South San Francisco, Calif. A transmitting triode used as a Class C radio frequency amplifier up to 300 megacycles. Filament type, 6.3 volts at .3 amperes. Plate circuit 2000 volts at 56 milliamperes, negative control grid bias 140, for an output of 90 watts. Amplification factor 9.3.”
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.324629
label: catalog number
content: 324629
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: 4 1/4 in x 1 1/4 in; 10.795 cm x 3.175 cm