Hongqi 红旗 (Red Flag) 5402

Beijing 北京无线电厂 Beijing Radio Factory; Beijing

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  • Year
  • 1966 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 175682

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

 Technical Specifications

  • Number of Transistors
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s); Reflex
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 6 Volt
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet.
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Hongqi 红旗 5402 - Beijing 北京无线电厂 Beijing Radio
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 170 x 88 x 46 mm / 6.7 x 3.5 x 1.8 inch
  • Notes
  • The two models Hongqi 红旗 5401 and 5402 share the same schematic and the same picture but have different sizes. They are typical reflex receivers, see BG3. The have the following key features 主要性能: Frequency range 频率范围: broadcast band 535 - 1605 kc. Sensitivity 灵敏度: < 3 mV/m. Selectivity 选择性: > 12 dB. The IF is 465 kc. Set audio output 额定功率 : 50 mW. Electric power consumption 电源消耗 at zero signal 零信号: is 15 mA, at max. output 45 mA. Loudspeaker impedance is 8 ohm. 1 diode.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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