RCA "Radiola' type AR radio frequency amplifier
date: label: date made
content: ca 1923
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: Marked: "Radiola AR / Radio Frequency Amplifier / Type AR RCA / Serial No. 122924 / Style: 319518 / Pat'd: 11-7-[19]05 2-18-[19]08 / 4-17-[19]06 10-6-[19]14 / 1-15-[19]07 713-[19]17 / 6-15-[19]20. Radiola AR is a three stage radio frequency amplifier designed to be used with the RA tuner and DA detector-amplifier. Three 1/4 ampere UV-201 tubes are employed in an untuned RF circuit. Only two control knobs are employed on the panel. One is a filament rheostat and controls filament current. The second control is a potentiometer which varies grid bias on the first tube. Reference: RCA Victor Service Notes for 1923-1928, "Radiola AR".
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.320816
label: catalog number
content: 320816
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 10 in x 6 5/8 in x 8 1/4 in; 25.4 cm x 16.8275 cm x 20.955 cm