RCA "Radiola Special" radio receiver
date: label: date made
content: ca 1924
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: Marked: "Radiola Special / Radio Corporation of America", serial number 4575. Pat'd: 11/7/05; 1/18/07; 2/18/08; 4/12/10; 10/6/14; 10/22/18; 12/23/19; 7/6/20; 5/10/21. Other patents pending. Unit is a regenerative detector consisting of a single UV-199 tube with an intensity or regeneration control. Other controls include a secondary tuning condenser (0-10 scale), a filament rheostat (0-10 scale), a wavelength control switch for changing from 170-270 meters. Headphone posts are available on the panel as well as antenna and ground terminals. A slide top panel is missing form unit. Bakelite panel board is covered with a smooth metal plate. Reference: "Model Number and Dates of manufacture of RCA Radiolas". Clark Collection, CL 45 Battery Radiolas, page 141 (file includes photo).
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.321668
label: accession number
content: 241556
label: catalog number
content: 321668
label: serial number
content: 4575
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 9 3/8 in x 6 1/2 in x 6 1/2 in; 23.8125 cm x 16.51 cm x 16.51 cm