4 Band Radio/Cassette Recorder RD-422X

Sharp; Osaka

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  • Year
  • 1971–1974
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 84001
    • alternative name: Hayakawa Electric Co.Ltd.

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

 Technical Specifications

  • Number of Transistors
  • 12
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Tuned circuits
  • 8 AM circuit(s)
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Details
  • Cassette-Recorder or -Player
  • Power type and voltage
  • Line plus power jack, mostly with battery or storage battery / 110; 200; 220; 240 / D: 4 × 1.5 / 12 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch
  • Power out
  • 1.5 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: 4 Band Radio/Cassette Recorder RD-422X - Sharp; Osaka
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 307 x 200 x 99 mm / 12.1 x 7.9 x 3.9 inch
  • Notes

  • Sharp Model RD-422

    Two-track cassette tape recorder with built-in 4-band radio. Unique mixing system allows recording direct from radio and microphone simultaneously, either one alone. Sound monitoring system. Level/battery meter. Slide lever controls for tone and volume. Operates on AC, batteries or car battery.

    Fold-away swivel type antenna for peak SW3 reception. Top mounted push-button controls. Remote control on microphone. Earphone and Jack for personal listening. (MINGAY'S PRICE SERVICE)

    MW (AM) - 530~1605 kHz; SW1 - 1.6~4.0 MHz; SW2 - 4.0~12.0 MHz; SW3 - 12~26 MHz

    Also 240 volt only version available, Model RD-422E.

  • Net weight (2.2 lb = 1 kg)
  • 3 kg / 6 lb 9.7 oz (6.608 lb)
  • Price in first year of sale
  • 169.00 AUS $
  • Literature/Schematics (1)
  • -- Original-techn. papers. (Service Manual.)
  • Author
  • Model page created by Josef Pilz. See "Data change" for further contributors.

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