• Year
  • 1969/1970
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 97811
    • Brand: Supraphon

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

 Technical Specifications

  • Number of Transistors
  • 9
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 468 kHz
  • Wave bands
  • Broadcast, Short Wave plus FM or UHF.
  • Power type and voltage
  • Dry Batteries / 2 × 3 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch
  • Power out
  • 0.17 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Dolly 3 2821B - Tesla; Praha, Bratislava etc.
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Notes
  • Transistoren: 5× OC170, 107Nu70, SC206, 104NU71, GC507 (eisenlose Endstufe), OIRT-Band 73,5-65,2 MHz.
  • Author
  • Model page created by Wolfgang Lill. See "Data change" for further contributors.

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