Six Transistor 9 Volt

Koyo Denki Co. Ltd.; Kodaira, Tokyo

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  • Year
  • 1963 ?
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 189692

 Technical Specifications

  • Number of Transistors
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / block battery 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7 cm = 2.8 inch
  • Power out
  • 0.3 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Six Transistor [9 Volt] - Koyo Denki Co. Ltd.; Kodaira,
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 155 x 82 x 42 mm / 6.1 x 3.2 x 1.7 inch
  • Notes

  • The model KOYO Six Transistor (for 4 AA batteries) was made in different colors.

    Because of some pictures from a guest which show a 9 volt battery we created this model as variant "9 Volt".

    The variant works with a 9 volts block battery, the other variant with 4 AA batteries. The common color for the back cover is dark green. They have also a brown colored leather case with a strap. Hitachi metal germanium transistors are used.

    Today we are in doubt if this 9-Volt-version exists. The picture shows a 9V battery but there is room enough for the usual 4xAA-set. Probably the owner from Turkey had only the 9V battery and not the AA batteries and made some changes to cope with.

    See all the similar models reported under Koyo Six Transistor.

  • Net weight (2.2 lb = 1 kg)
  • 0.370 kg / 0 lb 13 oz (0.815 lb)
  • External source of data
  • Guest Yasar Menguc, Adana Turkey
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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The model Six Transistor is part of the collections of the following members.

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