Raytheon type 7Q7 pentagrid-converter tube
date: label: date made
content: 1940
name: label: maker
content: Raytheon Company
notes: label: Description (Brief)
content: A metal 8-pin base with center post, T-shaped envelope, aquadaq coating. Stamped on top: "7Q7". Paper label reads: "Raytheon Engineering Dept. / Type 7Q7 Lot [blank] / RMA sample / Newton, Mass. Date 7/26/40". Reference: https://www.radiomuseum.org/tubes/tube_7q7.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.313856
label: catalog number
content: 313856
label: accession number
content: 195337
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: heptode
physicalDescription: label: Measurements
content: overall: 2 3/4 in x 1 1/8 in; 6.985 cm x 2.8575 cm