• Year
  • 1956 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 82619
    • Brand: Musaphonic

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

 Technical Specifications

  • Number of Transistors
  • 6
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / D: 4 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Transistor P-720 - General Electric Co. GE;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 9.5 x 6.5 x 3.25 inch / 241 x 165 x 83 mm
  • Notes
  • See also P-720B and P-721.

    The difference between the P-720 and P-721 is the color of the leather case.  The B models have a battery box instead of paper tubes to hold batteries. The schematic are the same for  all models.

  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 17, 1957
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

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