Westinghouse type WL-218 half-wave vacuum rectifier
date: label: date made
content: ca 1924
name: label: associated user
content: unknown
label: maker
content: Westinghouse Electric Corporation
notes: label: Description (Brief)
content: A metal pin-and-blade base with top contact, G-shaped envelope with neck. Stamped on base: “Westinghouse”; on envelope: “218” and “REL / R” inside a leaf outline.” Donor’s card reads: “Half-wave vacuum rectifier made by the Westinghouse Corporation and used in station WJJD in Chicago. High voltage rectifier capable of handling 10000 volts DC. Original design was announced by RCA in 1921 and the manufacture of these tubes by Westinghouse was brought about by the 40/60% dollar value of purchase by RCA from GE And Westinghouse. Filament 11 volts at 14.7 amperes.” See also: https://www.radiomuseum.org/tubes/tube_218.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.324695
label: catalog number
content: 324695
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: 15 1/2 in x 4 1/2 in; 39.37 cm x 11.43 cm