2 Band 8 Transistor R21

Challenge, (Brand); Where?

  • Year
  • 1968 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 330700

 Technical Specifications

  • Number of Transistors
  • 8
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Dry Batteries / 3 x 1,5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch
  • Power out
  • 0.6 W (unknown quality)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: 2 Band 8 Transistor R21 - Challenge, Brand; Where?
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 172 x 86 x 75 mm / 6.8 x 3.4 x 3 inch
  • Notes
  • Challenge 2 Band MW/LW 8 Transistor mod. R21
    Rod antenna, hi-lo tone, ext ant socket, ear phone socket.

    Made in the Republic of Ireland

     

  • Net weight (2.2 lb = 1 kg)
  • 0.450 kg / 0 lb 15.9 oz (0.991 lb)
  • Author
  • Model page created by Eckhard Wegner. See "Data change" for further contributors.

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