Radiola 64 AR-894 Socket Power Unit AP-772

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

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  • Year
  • 1928–1930
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 53626
    • 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
  • 11
  • Main principle
  • Superhet with RF-stage; ZF/IF 180 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Radiola 64 AR-894 Socket Power Unit AP-772 - RCA RCA Victor Co. Inc.; New
  • Shape
  • Console, Highboy (legs > 50 %).
  • Notes

  • Double doors; tuning meter.

    The Socket Power Unit (SPU) AP-772, located in the bottom shelf of the cabinet (below the receiver), converted AC power to all voltages required for the receiver and speaker field. Two power versions were available, one operating from 50-60 Cycle AC and the other operating from 25-40 Cycle AC, the only difference being the power transformer. There was a 110V/120V toggle switch for AC selection (selects different taps on the power transformer primary).

  • Price in first year of sale
  • 550.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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