Duplex 21-3A

Kriesler Radio Company; Newtown (Sydney)

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  • Year
  • 1953/1954
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 262536

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Batteries (any type) / 200; 220; 240; 260 / 9 & 90 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Duplex 21-3A - Kriesler Radio Company;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes

  • AC/Battery version of Duplex 41-7. This model differs from the earlier Duplex 21-3 by using a rotary switch instead of a slider switch for switching between battery & AC operation.

    Colours available in Burgundy, Grey, Brown & Cream. All have a Cream grille.

  • Price in first year of sale
  • 30.45 AUS £
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Kriesler Technical Service Instructions.)
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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