Westinghouse type WR-21 "Aeriotron" triode
name: label: maker
content: Westinghouse Electric & Manufacturing Co.
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Weston Electrical Instrument Corp., thru John H. Miller
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313310
label: catalog number
content: 313310
label: accession number
content: 181342
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 1/4 in; 11.43 cm x 3.175 cm