Masterpiece 733 1937

Parker McCrory Mfg. Co.; Kansas City, Missouri

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  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 50238
    • Brand: Parmak

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Masterpiece 733 1937 - Parker McCrory Mfg. Co.;
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 15.25 x 22.25 x 8 inch / 387 x 565 x 203 mm
  • Notes
  • The Parmak 733 is a Farm Radio featuring broadcast band plus two short wave bands: 5.5 - 18 mc and 1.75 - 5.5 mc. Quam speaker from Chicago. Vibrator for +B. 3 RF circuits plus 3 IF stages, push-pull output. This radio came in two different versions. The first version contains a single speaker. The second version contains 2 speakers, an 8 inch speaker and a 5 inch speaker. The chassis for both radio's are the same. The dimensions listed are those of the 2 speaker version. The model number is usually stamped on the rear of the speaker as is shown in the photographs.
  • External source of data
  • Ernst Erb
  • Source of data
  • - - Data from my own collection
  • Circuit diagram reference
  • Rider's Perpetual, Volume 13 = 1942 and before

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