• Year
  • 1974 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 179308

 Technical Specifications

  • Number of Transistors
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Red Lantern 红灯 2J9-3 - Shanghai No.2 上海无线电二厂
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • Red Lantern 红灯 (Hongdeng) model 2J9-3 receives broadcast band 535 - 1605 kHz and SW 2 - 6 MHz plus 6 - 12 MHz. Sensitivity 灵敏度: < 1 mV/m (100uV). Selectivity 选择性: > 30 dB S/N. Set audio output 额定功率: 500 mW (1.2 W). The IF 中频频率 is most probably 465 kc. Loudspeaker is 4 ohm.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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