Sylvania type 31 triode
date: label: date made
content: ca 1932
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: A plastic 4-pin base with domed envelope. Stamped on base: Sylvania / Made in U.S.A./ B / 4”, on envelope “31”.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320208
label: catalog number
content: 320208
label: accession number
content: 188571
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 in x 1 1/2 in; 10.16 cm x 3.81 cm