RCA / Cunningham "Radiotron" type 78 vacuum pentode
date: label: date made
content: ca 1934
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A vacuum pentode with plastic 6-pin base, top contact, Screen grid, mica insulator, BT-shaped envelope. Stamped on envelope: "78"; on base: "RCA / Cunningham / Radiotron / F 7". Reference: https://www.radiomuseum.org/tubes/tube_78.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.323196
label: catalog number
content: 323196
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: pentode
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 1/2 in; 11.43 cm x 3.81 cm