Youyi 友谊 BX-711

Nantong 南通无线电厂 Nantong Radio Factory; Nantong (Jiangsu, E)

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  • Year
  • 1972 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 181466

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 / 3 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Youyi 友谊 BX-711 - Nantong 南通无线电厂 Nantong
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 195 x 110 x 46 mm / 7.7 x 4.3 x 1.8 inch
  • Notes
  • The radio model Youyi 友谊 BX-711 (Freindship) receives broadcast 535 - 1605 kc. Sensitivity 灵敏度: 2 mV/m. Selectivity 选择性: 14 dB (S/N). Set audio output 额定功率: 100 mW. Electric power consumption 电源消耗 at zero signal 零信号: 20 mA, at max. it is 100 mA. The IF frequency is most probably 465 kc. Loudspeaker is 8 ohm. 4 diodes.
    The radio models Youyi 友谊 BX-711, Youyi 友谊 BX-712 and Youyi 友谊 BX-713 share the same documentation and schematic at manual 03, page 291/292.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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