Sapphire 4TR8-M304

Vega (brand), Technical and Optical Equipment Ltd.; London

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  • Year
  • 1971
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 258177

 Technical Specifications

  • Number of Transistors
  • 8
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast, Long Wave and 2 x Short Wave.
  • Power type and voltage
  • Dry Batteries / 4 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm
  • Power out
  • 0.1 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Sapphire 4TR8-M304 - Vega brand, Technical and
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 215 x 125 x 47 mm / 8.5 x 4.9 x 1.9 inch
  • Notes

  • The Sapphire superhet receiver has the following wave bands:

    • LW: 150 - 408 kHz (2000 m - 735.3 m)
    • MW: 525 - 1605 kHz (571.4 m - 186.9 m)
    • SW1: 9.5 - 12.1 MHz (31.5 m - 25 m)
    • SW2: 3.95 - 7.3 MHz (75 m - 41 m)

    It employs 8 transistors and 2 diodes, using 4 separate OSC coils plus AGC. The set has built-in ferrite rod and telescopic antennas, sockets for external aerial and earphones, and it features a slow motion tuning mechanism.

    Made in USSR.

    Export version of the Astrad 4TR8-M304 and the Rossiya 301

  • Net weight (2.2 lb = 1 kg)
  • 1 kg / 2 lb 3.2 oz (2.203 lb)
  • Mentioned in
  • -- Original prospect or advert

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