• Year
  • 1963
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 175423

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

 Technical Specifications

  • Number of Transistors
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Power out
  • 0.25 W (unknown quality)
  • Material
  • Special material, described in the notes.
  • from Radiomuseum.org
  • Model: Tivoli BT21 - Regentone Products / Radio
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 244 x 157 x 63 mm / 9.6 x 6.2 x 2.5 inch
  • Notes
  • Rear case is a compressed resin, the front is modern plastics.

    Portable radio with car aerial & earphone sockets. Battery type PP7. Electrically similar to model BT20 but with different aerial input circuit.

  • Source of data
  • -- Schematic
  • Circuit diagram reference
  • Radio and TV Servicing books (R&TVS) book
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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