Sylvania type 893-A power triode
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: A glass tube with copper heat sink on bottom, four connectors with wing nuts on top cap, and a side tube with a single copper contact. Stamped: "893-A / Sylvania." Donor’s card reads: “Power triode made by the Sylvania Corporation for use as a modulator, amplifier, or oscillator in radio transmitters. Filament is pure tungsten in three sections for operation from single, three, or six phase power supply. May be used at full power up to 5 megacycles. Filament section voltage 20, total filament current 183 amperes. Typical Class C operation: 12000 volts at 2 amperes on the plate, 3000 volt negative grid bias, for an output of 15 kw from 350 watts of drive.” See also: https://www.radiomuseum.org/tubes/tube_893a.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.325321
label: catalog number
content: 325321
label: accession number
content: 252994
objectType: label: Object Name
content: triode
label: Object Name
content: tube
physicalDescription: label: Measurements
content: overall: 26 1/4 in x 5 3/4 in; 66.675 cm x 14.605 cm