National Union type 832 twin beam power tube
date: label: date made
content: 1941
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: A two-piece cylindrical glass envelope, no base, two contacts on top, seven on bottom. Donor’s card reads: “Twin beam power tube made by the National Union Radio Corporation, 350 Scotland Road, Orange, N.J. for the US government in 1941. Heater type, having a mid-tapped heater used as a radio frequency amplifier and oscillator, at full power up to 200 megacycles. Heater Heater can be operated in series, 12.6 volts at .8 ampere or in parallel 6.3 volts at 1.6 amperes. Requires “Septar” seven contact socket. When used with two units in “push-pull” as a Class C radio frequency amplifier, plate circuit 750 volts, screen 250 volts, negative control grid bias 175 volts for an output of 26 watts.” See also: https://www.radiomuseum.org/tubes/tube_832.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.324471
label: catalog number
content: 324471
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: 7 1/2 in x 2 1/4 in; 19.05 cm x 5.715 cm