• Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 53846
    • alternative name: RCA Manufacturing || Victor Talking Machine

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and 2 x Short Wave.
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Power out
  • 2.5 W (4.5 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 8Q4 Ch= RC-337A - RCA RCA Victor Co. Inc.; New
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 24.5 x 12.7 x 10.7 inch / 622 x 323 x 272 mm
  • Notes
  • Choice of 4 external power supplies for AC and DC:

    • PSU 8A: AC 105-125 V / 50-60 Hz
    • PSU 8B: AC 105-125 V / 25-60 Hz
    • PSU 8C: AC 105-250 V / 50-60 Hz
    • PSU 8E: DC 105-125; 210-250 V

     Dial lamps: 2 x *44 (6.3V/0.25A)

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 11 = ca. 1940 and before

 Collections | Museums | Literature

Collections

The model 8Q4 is part of the collections of the following members.

 Forum