General Electric type 866 half-wave mercury vapor rectifier
date: label: date made
content: 1929
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A 4-pin plastic base, top contact, S-shaped envelope. Donor’s card reads: “Half wave mercury vapor rectifier made by the General Electric Company for the Radio Corporation of America in January 1929. This tube came from the WCAU transmitter at Newtown Square [Pennsylvania] in 1938 and was considered obsolete at that time. Two such tubes, connected for full wave rectification will give a maximum of 3180 volts and a maximum of 500 milliamperes [the same as catalog number 324544].”
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.324545
label: catalog number
content: 324545
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 6 1/2 in x 2 1/4 in; 16.51 cm x 5.715 cm