Westinghouse type 814 beam power tube
name: label: maker
content: Westinghouse Electric Corporation
notes: label: Description (Brief)
content: Double-ended transmitting pentode with 5-pin plastic base, metal top contact for plate connection. Cylindrical BT-shaped envelope, air-cooled. Printed on base: "Made in U.S.A." Donor’s card reads: “Beam power tube made by Westinghouse Corporation primarily for use as a Class C radio frequency amplifier in transmitters. Somewhat similar to the RK-47 tube [catalog number 324461] but capable of slightly more capacity. Thoriated tungsten filament: 10 volts at 3.25 amps, plate circuit: 1500 volts; screen 300; negative grid bias 100 volts; plate dissipation 60 watts. An excellent tube used by a number of amateur transmitter manufacturers as a final amplifier, including the widely used Hallicrafters HT-9. Like the RK-47 the 814 was easily damaged with excessive grid drive in the tuning process.” See also: https://www.radiomuseum.org/tubes/tube_814.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.324462
label: catalog number
content: 324462
label: accession number
content: 252994
objectType: label: Object Name
content: pentode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 2 in; 19.05 cm x 5.08 cm