Deluxe 4-Band 13 Transistor BZ-23

Sharp; Osaka

  • Year
  • 1965–1972
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 227642
    • alternative name: Hayakawa Electric Co.Ltd.

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

 Technical Specifications

  • Number of Transistors
  • 13
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Dry Batteries / D: 4 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 0.45 W (0.7 W max.)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Deluxe 4-Band 13 Transistor BZ-23 - Sharp; Osaka
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 11.25 x 6.875 x 3 inch / 286 x 175 x 76 mm
  • Notes
  • Sharp Model BZ-23 Four-band, 13 transistor portable radio

    Superheterodyne system with AGC and colour tuning circuit.

    Specifications: tuning range, MW 530 - 1650 kc/s (kHz); SW1 1.6 - 4.3 Mc/s (MHz); SW2 3.9 - 12 Mc/s (MHz); SW3 12 - 26.5 Mc/s (MHz). Maximun output 700 mW, no distortion 450 mW. Equipped with pilot lamp for easy tuning in the dark.

    Power source: four UM-1 (1.5V) batteries. Speaker: 5⅛" x 3½" oval permanent dynamic;MR-1A magnetic earphone. Built-in ferrite core antenna. Jack for connection of record player. (MINGAY'S PRICE SERVICE)

    Price after the introduction of decimal currency in Australia was $109.20.

  • Net weight (2.2 lb = 1 kg)
  • 2.570 kg / 5 lb 10.6 oz (5.661 lb)
  • Price in first year of sale
  • 54.60 AUS £

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The model Deluxe 4-Band 13 Transistor is part of the collections of the following members.

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