• Country
• People's Republic of China

• Manufacturer / Brand
• Hangzhou 杭州群英无线电厂 Hangzhou Qunying Radio Factory; Hangzhou

• Year
• 1966 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 175882

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

• Number of Transistors
• 5

• Semiconductors
• 3AG1C 3AG1B 3AG1B 3AX31B 3AX31B 2AP9 2AP9

• 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 / 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: Honglei 红蕾 531 - Hangzhou 杭州群英无线电厂

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

• Dimensions (WHD)
• 150 x 90 x 42 mm / 5.9 x 3.5 x 1.7 inch

• Literature/Schematics (1)
• 01-Transistor Radio Manual 1972, 2nd Ed. 2nd Print 1983 (page 147.)

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

• Other Models

• Here you find 8 models, 3 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hangzhou 杭州群英无线电厂 Hangzhou Qunying Radio Factory; Hangzhou