Haiyan 海燕 713

Beijing 北京无线电唱机厂 Beijing Radio-Gramophone Factory; Beijing

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  • Year
  • 1972 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 182320

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); Reflex
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Details
  • Record Player (not changer)
  • Power type and voltage
  • Dry Batteries / 6 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Haiyan 海燕 713 - Beijing 北京无线电唱机厂 Beijing Radio
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • The radio model Haiyan 海燕 713 (Ocean Swallow) offers the following key features 主要性能: Frequency range 频率范围: broadcast 535 - 1605 kc. Sensitivity 灵敏度: < 1.5 mV/m. Selectivity 选择性: > 20 dB S/N. Set audio output 额定功率: 500 mW (1200 mW). The IF 中频频率 is most probably 465 kc. Loudspeaker impedance is 8 ohm. 2 diodes. Integrated record player for 33 and 78 rpm. Sockets for external loudspeaker of 250, 16 and 8 ohm. Reflex or not is not cleared, but we think there is a IF reflex stage.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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