Raytheon type 12B7 vacuum pentode
date: label: date made
content: 1939
name: label: maker
content: Raytheon Company
notes: label: Description (Brief)
content: An 8-pin metal base with glass insulators, T-shaped envelope, getter flash at top. Stamped on top: "12B7". Paper label reads: "Raytheon Engineering Dept. / Type 12B7 / Newton, Mass. / Date 6/12/39". No technical information on label. Reference: https://www.radiomuseum.org/tubes/tube_12b7.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.313866
label: catalog number
content: 313866
label: accession number
content: 195337
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: pentode
physicalDescription: label: Measurements
content: overall: 2 1/2 in x 1 1/4 in; 6.35 cm x 3.175 cm