Crosley type 6A7 pentagrid-converter
date: label: date made
content: 1936
name: label: maker
content: Crosley
notes: label: Description (Brief)
content: A 7-pin plastic base with top contact, BT-shaped envelope, aquadag internal coating. Stamped on base: "Crosley / Made by Ken-Rad / L K 4"; on envelope: "Made in / 6A7 / U.S.A.". Paper label reads: "Sylvania / Set tested radio tubes / Good [checked] Doubtful / Bad / Date 7/26/37 / 22.0 / John Bengston / Rock Island, Ill. / Phone: R. I. 555 / # [illegible]". Reference: https://www.radiomuseum.org/tubes/tube_6a7.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.241556.802
label: accession number
content: 241556
label: catalog number
content: 241556.802
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: heptode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: electron tube: 11 cm x 3.5 cm; 4 11/32 in x 1 3/8 in
label: Measurements
content: overall: 4 1/2 in x 5/8 in; 11.43 cm x 1.5875 cm