• Country
• People's Republic of China

• Manufacturer / Brand
• Tianjin 天津渤海无线电厂 Tianjin Bohai Radio Factory; Tianjin (N)

• Year
• 1968 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 181277

• Number of Transistors
• 7

• Semiconductors

• 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

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Seagull 海鸥 709-2 - Tianjin 天津渤海无线电厂

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Notes
• The model Seagull 海鸥 709-2 (Haiou) is mentioned together with Seagull 海鸥 709 and Seagull 海鸥 709-1 in a flyer.

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 25 models, 16 with images and 23 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tianjin 天津渤海无线电厂 Tianjin Bohai Radio Factory; Tianjin (N)