RCA "Radiola 20" radio receiver
date: label: date made
content: ca 1925
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: Marked: (Panel nameplate reads) RCA / Radiola 20 / Reg. U.S. Pat. Office / See license notice inside / Radio Corporation of / America. (Under top lid is license & patent notice) Title reads: Radiola 20 / Reg. U.S. Patent Office / Model AR-918 / Range 550-1500 Kilocycles / Notice: [etc.] (Battery connection guide under top lid). Specimen is TRF receiver employing two RF stages, a regenerative detector and two AF stages. Four UX-199 tubes are used and one UX-120 power amplifier. To facilitate tuning, the variable capacitors in the detector and RF stages have been coupled together and can be operated by one control drum. Regeneration is of the inductive type, with a tickler coil coupled to grid coil of the detector stage. This type of unit sold for $102.50 in 1925. Tubes are missing from this specimen. REF: "Langley Set Index", page 58. (Clark Collection CL45) Radiola 20 Service Notes, 1926.
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.321107
label: catalog number
content: 321107
label: accession number
content: 241556
label: model number
content: AR-918
objectType: label: Object Name
content: radio receiver
label: Object Name
content: receiver, radio
physicalDescription: label: Measurements
content: overall: 11 in x 19 in x 16 in; 27.94 cm x 48.26 cm x 40.64 cm