• Year
  • 1966 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 175352

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

 Technical Specifications

  • Number of Transistors
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 4 x 1.5 Volt
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet.
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Hai He 海河 BS-402 [TTD] - Tianjin 天津塘沽东方红无线电厂
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 240 x 150 x 65 mm / 9.4 x 5.9 x 2.6 inch
  • Notes
  • Brand is 海河,Hai He in Mandarin. Hai He is a system of five waterways around Tianjin, flowing into Bohai 渤海 at Dagukou. This model was also made by 天津渤海无线电厂, Tianjin Behai Wireless Factory - with the same brand and model designation.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum