RCA / Crosley type 49 dual-grid power amplifier
date: label: date made
content: ca 1939
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 5-pin plastic base with domed envelope. Stamped on base: “Crosley / Made in U.S.A. / 143. / 274”, on envelope: "49". Donor’s card reads: “Dual-grid power amplifier made by the Radio Corporation of America for the Crosley Mfg. Co. about 1939. Glass type, used in the output stage of battery operated radio receivers. Filament: 2 volts at .12 amperes.”
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.325017
label: catalog number
content: 325017
label: accession number
content: 252994
objectType: label: Object Name
content: electron tube
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm