National Union type 2X2 / 879 half wave vacuum rectifier
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: A half wave vacuum rectifier with 4-pin plastic base, top contact, domed envelope. Tube checked "OK" in 1963. Marked: "National Union / Made in U.S.A.", "Licensed only to extent indicated on carton", and "2-X-2 / 879". Reference: https://www.radiomuseum.org/tubes/tube_879.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.322620
label: catalog number
content: 322620
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: rectifier
physicalDescription: label: Measurements
content: overall: 4 3/8 in x 1 3/8 in; 11.1125 cm x 3.4925 cm