Sylvania type 12-BH-7-A medium-Mu twin triode
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: A 9-pin glass base with tipped T-shaped envelope. Miniature tube. Stamped: "12BH7A / F6V”. Donor’s card reads: “Medium-Mu twin triode made by Sylvania. Used as combination vertical deflection amplifier and vertical oscillators and as horizontal deflection oscillators in television receivers. Center tapped heater for either 6.3 or 12.6 volt operation. Each plate requires 250 volts and a negative control grid bias of 10.5 volts. Amplification factor 16.5”. See also: https://www.radiomuseum.org/tubes/tube_12bh7a.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.324836
label: catalog number
content: 324836
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
label: Object Name
content: dual triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 5/8 in x 3/4 in; 6.6675 cm x 1.905 cm