P770A

General Electric Co. (GE); Bridgeport CT, Syracuse NY

Data
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  • Year
  • 1958/1959
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 70385
    • Brand: Musaphonic

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

 Technical Specifications

  • Number of Transistors
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / "D" 3 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: P770A - General Electric Co. GE;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 226 x 164 x 70 mm / 8.9 x 6.5 x 2.8 inch
  • Notes

  • The General Electric P770A is a battery operated 7 transistor portable AM Radio.
    The AM band tuning range is 540 - 1620 kHz.  Uses Qty(3) 1.5V "D" size batteries. Has push-pull audio output stage and separate switch for dial light.  Jumpers on circuit board allow use of either NPN or PNP output transistors.

    The P770A is part of the following family of models:

    Model Cabinet
    P770A Plastic - Antique White
    P771A Plastic - Green
    P776A Leather - Brown
    P776B Leather - Brown
  • Net weight (2.2 lb = 1 kg)
  • 1.5 kg / 3 lb 4.9 oz (3.304 lb)
  • Author
  • Model page created by Trev Levick. See "Data change" for further contributors.

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The model P770A is part of the collections of the following members.

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