National Union type 45 vacuum triode
date: label: date made
content: ca 1935
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: A power output triode. Four-pin plastic base, with domed envelope. Marked: "National / Union / Y", and "45". Oval mica insulator at top. Reference: https://www.radiomuseum.org/tubes/tube_45.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320618
label: catalog number
content: 320618
label: accession number
content: 242373
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 5/8 in x 1 3/4 in; 11.7475 cm x 4.445 cm