• Year
  • 1964 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 231587

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
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 2 x 1.3 Volt
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet. / Ø 4.5 cm = 1.8 inch
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Mini 7TR - Orion Electric Co., Ltd.;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 2 x 1.9 x 1 inch / 51 x 48 x 25 mm
  • Notes
  • This Orion 7TR radio model, among others models from different brands like the Standard Micronic SR-G430, uses a transformer-less push-pull output stage directly driving a special high impedance center tap speaker. In this model the speaker has 60 ohm impedance CT.

    Made in Japan JT-602

  • Author
  • Model page created by Mark Skala. See "Data change" for further contributors.

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

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