• Year
  • 1972 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 181471

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 465 kHz; 3 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 4.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • from Radiomuseum.org
  • Model: Zhenzhu 珍珠 708 - Bengbu No.1 蚌埠无线电一厂 Bengbu No.
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Dimensions (WHD)
  • 287 x 132 x 77 mm / 11.3 x 5.2 x 3 inch
  • Notes
  • The radio model Zhenzhu 珍珠 708 (Pearl) receives broadcast 535 - 1605 kc. Sensitivity 灵敏度: 1.5 mV/m. Selectivity 选择性: 16 dB (S/N). Set audio output 额定功率: 200 mW. Electric power consumption 电源消耗 at zero signal 零信号: 12 mA, at max. it is 100 mA. The IF frequency is most probably 465 kc. Loudspeaker for 8 ohm. 3 diodes.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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