RCA type 844 screen grid radio frequency power amplifier
date: label: date made
content: ca 1930
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 5-pin plastic base with top contact, domed envelope. Stamped: “844”. Donor’s card reads: “Screen grid radio frequency power amplifier made by the Radio Corporation of America about 1930 for transmitting purposes. Heater: 2.5 volts at 3.25 amperes. When used as a Class C plate modulated amplifier with 500 volts at 25 milliamps on the plate, this tube will deliver about 4 watts up to 8 megacycles.” See also: https://www.radiomuseum.org/tubes/tube_844.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.325043
label: catalog number
content: 325043
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: 5 3/4 in x 2 in; 14.605 cm x 5.08 cm