RCA type 866 "Radiotron" mercury vapor rectifier
date: label: date made
content: ca 1924
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: A 4-pin plastic base with top contact, S-shaped envelope. Stamped on base: “[RCA logo . Radiotron / Made in U.S.A.” Donor’s card reads: “Mercury vapor rectifier made by the Radio Corporation of America. The original design of this type, used in the base station of the West Chester police in the 1920s. This design precedes [catalog numbers 324544 and 324545]. Filament type: 2.5 volts at 5 amperes. Plate capacity 300 milliamperes.”
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.324639
label: catalog number
content: 324639
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 1/4 in x 2 1/4 in; 15.875 cm x 5.715 cm