• Year
  • 1966
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 150186
    • Brand: Musaphonic

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • U161
  • Main principle
  • Superheterodyne (common); 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Storage batteries (perhaps also batteries) / sep. battery charger with LS / 3.75 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Power out
  • 0.14 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Micro Electronic P1740 - General Electric Co. GE;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 80 x 55 x 28 mm / 3.1 x 2.2 x 1.1 inch
  • Notes
  • The General Electric model P1740 is the first IC radio ever. According to the "Electronics World", November 1966, page 44 fhrough 46 there is an article by Cacciola, J.A. / Carr, E.Q with title "World's first Single-Chip Integrated-Circuit-Radio". With the model comes a battery charger for the internal accumulator (storage battery). There are two versions (see pictures): one without the other with a clock radio, both having a bigger loud speaker which is automatically switched on when playing on the connected docking station type charger (model C-2450). The set has no transistors and we don't know the number of transistors in the ICs.

    By the way: in Spring 1967 Heathkit sold the AR-15 AM-FM radio with two ICs CA3012 from RCA. Philips was the follower in Europe for an IC radio - with the model IC2000 - introduction "Funkausstellung" 1967. At roughly the same time Sony Japan was marketing their first IC radio as IC100.

    See also model C-2450A.

  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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The model Micro Electronic is part of the collections of the following members.