RCA model 721-TS television receiver
date: label: Date made
content: 1947
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: The a-f-c horizontal hold that was used in this set was of a new type. Regarding the horizontal oscillator and discharge circuit: the incoming synchronization is superimposed on the horizontal oscillator waveform and applied to the control tube grid. If the two voltages are not in the proper frequency and phase relations, the control tube applies a bias to the oscillator to bring it into synchronization. 9" diameter cathode ray tube.
label: Description (Brief)
content: Tubes used: 6J6 R-F Amplifier, 6J6 R-F Oscillator, 6J6 Converter, 6BA6 first and second sound amplifiers, 6AL5 discriminator, 6A65 first second and third picture I-F amplifier, 6AL5 picture second detector and synchronization limiter, 1B3-GT/8016 high voltage rectifier, SU4-G power supply rectifier; 10BP4 kinescope receiving tube.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from E. A. Howard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.319318
label: catalog number
content: 319318
label: accession number
content: 237350
label: model number
content: 721-TS
label: serial number
content: 066020
objectType: label: Object Name
content: television receiver
physicalDescription: label: Measurements
content: overall: 17 3/4 in x 19 in x 19 1/2 in; 45.085 cm x 48.26 cm x 49.53 cm
label: Measurements
content: screen: 10 in; x 25.4 cm