Ken-Rad "Crosley" type 57 vacuum pentode
date: label: date made
content: ca 1932
name: label: maker
content: Ken-Rad Tube and Lamp Corporation
label: maker
content: Crosley
notes: label: Description (Brief)
content: A vacuum pentode for radio frequency / intermediate frequency stage. A 6-pin plastic base with top contact, domed envelope. Stamped on base: "Crosley / Made by Ken-Rad U.S.A. / L K 3"; on envelope: "57". Paper label reads: "Sylvania / Set Tested Radio Tubes / Good Doubtful Bad [doubtful is checked] / date 6/24/37 / John Bengston / Rock Island, Ill. / Phone: R. I. 555". Internal aquadaq coating on envelope: Reference: https://www.radiomuseum.org/tubes/tube_57.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.322772
label: catalog number
content: 322772
label: accession number
content: 241556
objectType: label: Object Name
content: pentode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 3/4 in x 1 1/2 in; 12.065 cm x 3.81 cm