M-O Valve type KT-88 beam power tube
name: label: maker
content: Marconi-Osram Valve Co., Ltd.
notes: label: Description (Brief)
content: A 7-pin plastic base with center post, BT-shaped envelope. Stamped: “KT88 / PB 4”. Donor’s card reads: “Beam power tube made by M-O Valve Company of England for the General Electric Company Ltd., of England. Use as a Class A amplifier in the output of audio amplifiers, especially in a push-pull circuit. Heater type: 6.3 volts at 1.6 amperes. For Class A operation: 250 volts at 140 milliamperes in the plate circuit, 250 volts on the screen, 50 volts negative control grid bias, for an output of 30 watts (per tube) of audio power.” See also: https://www.radiomuseum.org/tubes/tube_kt88.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.324515
label: catalog number
content: 324515
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: electron tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 2 in; 11.43 cm x 5.08 cm