Raytheon type 7B8 pentagrid converter
date: label: date made
content: ca 1939
name: label: maker
content: Raytheon Company
notes: label: Description (Brief)
content: An 8-pin metal base with center post, T-shaped envelope. Envelope stamped: "F9 / Raytheon / Made in U.S.A.”; and "7B8". Reference: https://www.radiomuseum.org/tubes/tube_7b8.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.313949
label: catalog number
content: 313949
label: accession number
content: 195337
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: heptode
label: Object Name
content: pentagrid converter
physicalDescription: label: Measurements
content: overall: 2 3/4 in x 1 1/8 in; 6.985 cm x 2.8575 cm