Westinghouse type RB heterodyne
date: label: date made
content: 1921
name: label: maker
content: Westinghouse Electric & Manufacturing Co.
notes: label: Description (Brief)
content: Marked: Heterodyne Radio Receiver / Style No. 307191 type RB / Serial No. 314. This heterodyne radio receiver is the property of the Westinghouse Electric & Mfg. Co., East Pittsburgh, PA, U.S.A. It is leased and licensed for limited use by the original lessee only. Fessenden U.S. Patent Nos. 1050441 and 2060839. Possession subject to recovery by the lessor upon violation of terms of lease. Pat. 1-14-13; 10-6-14. Westinghouse Electric & Mfg. Co. East Pittsburgh PA, U.S.A.
label: Description (Brief)
content: This is a regenerative type receiver utilizing what appears to be a UV-199 triode. (tube missing) Inductance taps are provided for the following wavelength ranges: 250-500 meters; 400-900 meters; 800-1700 meters; 1400-3000 meters and 2500-5200 meters.
label: Description (Brief)
content: An inductively coupled tickler coil provides for the generation of local oscillations for heterodyne reception of undamped (CW) waves. Tuning condensers are controlled by panel knobs on front. A filament rheostat and grid condenser are also provided. A small safety spark gap is connected between the ground and antenna binding post to protect the receiver from high antenna voltages. A push button on the panel allows the operator to determine whether or not the receiver is oscillating with receiving continuous waves. When pressed, it short Circuits the tickler coil and causes a click in the headphones, due to stoppage of oscillations.
label: Description (Brief)
content: Reference: Westinghouse Electric & Manufacturing Co. Radio Specification No. 145332-B. Medium Wave Heterodyne Receiver - Type RV (1921). (Clark Collection: CWC 45 - 247A).
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.320689
label: catalog number
content: 320689
label: serial number
content: 314
label: patent number
content: 1050441
label: patent number
content: 1050728
label: accession number
content: 241556
objectType: label: Object Name
content: Receiver, radio
label: Object Name
content: radio receiver
label: Other Terms
content: Receiver, radio; Radio
physicalDescription: label: Measurements
content: overall: 11 in x 19 1/4 in x 10 3/4 in; 27.94 cm x 48.895 cm x 27.305 cm