National Union type NX280 full wave vacuum rectifier
date: label: date made
content: ca 1930
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: A plastic 4-pin base with S-shaped envelope, getter stain, two vertical elements, one mounted on either side of stem. Stamped on base: "National / Union / NX-280". Reference: https://www.radiomuseum.org/tubes/tube_nx280.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: ZZ.RSN79833U06
objectType: label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube; 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: 5 1/4 in x 2 in; 13.335 cm x 5.08 cm