Radio Instrument Co. tuned radio frequency receiver
date: label: date made
content: ca 1923
label: date made
content: c 1923
name: label: maker
content: Radio Instrument Co.
notes: label: Description (Brief)
content: A six tube tuned radio frequency (TRF) receiver employing 201A triodes. Only one tube is in place. Circuit has three radio frequency stages, a detector and two audio stages with transformer coupling. Marked with RIC logo on panel. Rheostat controls, A and B battery binding posts, and monitoring jacks are located on the hard rubber front panel. Six slots on panel permit observation of tube filaments. Panel is loose from wooden case. Unit has a hinged top. First RF stage has an RIC DX-18 coil, 2nd and 3rd stages use DX-19 coils. Four Radio Instrument Co. type DX transformers are loose in back of chassis; three are in place in brackets. Lowell & Dunmore patent interference case. Paper inside reads: "Harmon Ident 4 changed to exhibit 6".
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from John B. Brady, thru Mrs. John B. Brady
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321942
label: catalog number
content: 321942
label: accession number
content: 245709
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 7 3/4 in x 16 1/8 in x 9 in; 19.685 cm x 40.9575 cm x 22.86 cm