Royal 4A 1939

Parker McCrory Mfg. Co.; Kansas City, Missouri

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  • Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 50223
    • Brand: Parmak

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Royal 4A 1939 - Parker McCrory Mfg. Co.;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 17.5 x 10.625 x 9.5 inch / 445 x 270 x 241 mm
  • Notes
  • The walnut cabinet was made to house a Ray-O-Vac "AB" battery pack.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 12 = ca. 1941 and before
  • Mentioned in
  • - - Manufacturers Literature (1939 Mailed Sales Booklet)

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