EIMAC type 250-R / VT166 half-wave vacuum rectifier
name: label: maker
content: Eimac
notes: label: Description (Brief)
content: A 4-pin metal base with top contact, G-shaped envelope. Stamped: "Eimac / 250-R / Made in U.S.A." Donor’s card reads: “Half-wave vacuum rectifier made by Eitel-McCullough of San Carols, Calif. Thoriated tungsten filament: 5 volts at 10 amperes. Will handle 250 milliamperes DC up to 4000 volts.”
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.324712
label: catalog number
content: 324712
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: 9 3/4 in x 3 1/2 in; 24.765 cm x 8.89 cm