National Union type NX-199-X triode
date: label: date made
content: ca 1926
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: A 4-pin plastic base with tipless T-shaped envelope, silvered. Stamped: "National / Union / NX-199-X", and "Licensed only to extent / indicated on carton". See also: https://www.radiomuseum.org/tubes/tube_ux199.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 Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323289
label: catalog number
content: 323289
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: electron tube, triode: 3 3/4 in x 1 1/8 in; 9.525 cm x 2.8575 cm