RCA / General Electric type UX280 "Radiotron" full-wave vacuum rectifier
date: label: date made
content: ca 1928
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A plastic 4-pin base with S-shaped envelope, getter stain, two vertical elements, one mounted on either side of stem. Stamped on base: "RCA / Radiotron / . UX.-280 ." Donor’s card reads: “Full wave vacuum rectifier made by the General Electric Company for the Radio Corporation of America, being announced by RCA on 22 May 1927, to replace the UX-213 type and to give a higher output current. Oxide coated tungsten filament: 5 volts at 2 amperes. Output current maximum of 125 milliamperes.” See also: Tyne, "Saga of the Vacuum Tube," page 324-325; https://www.radiomuseum.org/tubes/tube_ux280.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.324415
label: catalog number
content: 324415
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: diode
label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 1/4 in x 2 1/8 in; 13.335 cm x 5.3975 cm