K50 Ch= RC-497 2nd production

RCA (RCA Victor Co. Inc.); New York (NY)

  • Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 54303
    • 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
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm
  • Power out
  • 2 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: K50 Ch= RC-497 [2nd production] - RCA RCA Victor Co. Inc.; New
  • Shape
  • Console with any shape - in general
  • Dimensions (WHD)
  • 24 x 37.25 x 11.125 inch / 610 x 946 x 283 mm
  • Notes
  • This model has 3 power supply ratings:
    Rating A...105-125V, 50-60 Cycles
    Rating B...105-125V, 25-60 Cycles
    Rating C...105-125;200-250V, 50-60 Cycles
  • Net weight (2.2 lb = 1 kg)
  • 37 lb (37 lb 0 oz) / 16.798 kg
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 11 = ca. 1940 and before

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