National Union type 50Z7G vacuum rectifier
date: label: date made
content: ca 1940
name: label: maker
content: National Union Radio Corp.
notes: label: Description (Brief)
content: An 8-pin plastic base with center post, domed envelope, getter flash. Stamped on envelope: "50Z7 / G"; on base: “National / Union /Made in U.S.A. / Sample". Reference: https://www.radiomuseum.org/tubes/tube_50z7g.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 Susan Horle
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313865
label: catalog number
content: 313865
label: accession number
content: 195337
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: rectifier
physicalDescription: label: Measurements
content: overall: 4 in x 1 1/2 in; 10.16 cm x 3.81 cm