General Electric type UX-281 "Radiotron" rectifier
date: label: date made
content: 1927
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A 4-pin plastic base with tipless S-shaped envelope. Base stamped: “[RCA logo] / Radiotron / -UX-281". Donor’s card reads: “Half wave high vacuum rectifier made by the General Electric Company for the Radio Corporation of America. Dates from May of 1927 when it replaced the 216-B type [catalog number 324405]. Frequently used by amateurs at several times its rated voltage and was one of the workhorses of its day. Coated tungsten filament: 7.5 volts, rated at a maximum of 600 volts DC output and a maximum of 85 milliamperes DC.”
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.324414
label: catalog number
content: 324414
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: 5 1/2 in x 2 1/4 in; 13.97 cm x 5.715 cm