General Electric type 217C rectifier
date: label: date made
content: 1927
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A 4-pin base with top contact, T-shaped glass envelope. Donor’s card reads: “Diode made by the General Electric Company for the Radio Corporation of America. A half-wave thoriated tungsten filament high vacuum rectifier dating from January 1927. A modernized version of the original UV-217 rectifier [catalog number 324351] from the original RCA line of tubes. Filament: 10 volts at 3.25 amps; maximum inverse peak plate voltage: 7500; maximum plate current: .6 ampere.” See also: https://www.radiomuseum.org/tubes/tube_217c.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.324468
label: catalog number
content: 324468
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: diode
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 8 in x 2 1/4 in; 20.32 cm x 5.715 cm