RCA type 39/44 "Radiotron" vacuum pentode
date: label: date made
content: ca 1933
name: label: maker
content: E. T. Cunningham, Inc.
label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: A vacuum pentode for radio frequency / intermediate frequency stage. A 5-pin plastic base with top contact, BT-shaped envelope, mesh grid, mica insulator. Stamped on base: "0 RCA 9 / Radiotron"; on envelope: "39 / 44". Reference: https://www.radiomuseum.org/tubes/tube_44.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.321164
label: catalog number
content: 321164
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