Roadmaster 20 12H-864

Sanyo Electric Co. Ltd.; Moriguchi (Osaka)

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  • Year
  • 1968–1970
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 235194

 Technical Specifications

  • Number of Transistors
  • 12
  • Main principle
  • Superheterodyne (common); ZF/IF 455/10700 kHz; 3 AF stage(s)
  • Wave bands
  • Broadcast, 2 Short Wave plus FM or UHF.
  • Power type and voltage
  • Batteries / addl. power jack / C: 6 x 1.5 / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 0.6 W (1 W max.)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Roadmaster 20 12H-864 - Sanyo Electric Co. Ltd.;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 8.875 x 5.25 x 2.25 inch / 225 x 133 x 57 mm
  • Notes

  • Sanyo Model 12H-864

    A four-band portable radio powered by six penlight batteries and a full performance car radio when installed in its special automobile bracket (R-S864) which can be easily installed in any 6 or 12 volt car. A socket for optional AC adaptor is also incorporated.

    Features: 12 transistors. Four bands (MW, SW1, SW2 and FM). Fine tuning control; continuous tone control. Double antenna system. Large oval 6" x 4" speaker. (MINGAY'S PRICE SERVICE)

    Frequency range:

    MW  535 ... 1605 kHz
    FM     87...108 MHz
    SW1   2,3...7,3 MHz
    SW2   8,0...22,0  MHz

    To a certain extent, the device was a competitor to the better-known 7F-74DL from SONY.

  • Net weight (2.2 lb = 1 kg)
  • 2.7 lb (2 lb 11.2 oz) / 1.226 kg
  • Price in first year of sale
  • 135.00 AUS $
  • Literature/Schematics (1)
  • -- Original-techn. papers. (Service Manual.)

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