TH-669

Hitachi Ltd.; Tokyo

Data
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  • Year
  • 1957
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 103605
    • alternative name: Hitachi Sales Corp. of America

 Technical Specifications

  • Number of Transistors
  • 6
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 4 × 1,5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm
  • Power out
  • 0.1 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: TH-669 - Hitachi Ltd.; Tokyo
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 215 x 105 x 35 mm / 8.5 x 4.1 x 1.4 inch
  • Notes
  • Hitachi's first transistor radio.
  • Net weight (2.2 lb = 1 kg)
  • 0.8 kg / 1 lb 12.2 oz (1.762 lb)
  • Source of data
  • -- Collector info (Sammler)
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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