RCA type 1A7GTG pentagrid converter
date: label: date made
content: ca 1940
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: An 8-pin base with center post, metal shell, and top contact. T-shaped envelope. Stamped on envelope: "1A7 / GT/G”; on base: RCA logo. Donor card reads: “Pentagrid converter made by the Radio Corporation of America for use as a combined mixer and oscillator in low drain battery operated radio equipment. Glass octal metal base type, oxide coated filament: 1.4 volts at .05 ampere. Plate 110 volts, screen 60 volts.” See also: https://www.radiomuseum.org/tubes/tube_1a7gt.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 Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324455
label: accession number
content: 252994
label: catalog number
content: 324455
objectType: label: Object Name
content: pentagrid converter
label: Object Name
content: electron tube
label: Object Name
content: heptode
physicalDescription: label: Measurements
content: overall: 3 1/4 in x 1 1/4 in; 8.255 cm x 3.175 cm