• Country
• People's Republic of China

• Manufacturer / Brand
• Wuhan 武汉无线电厂 Wuhan Radio Factory; Wuhan City (Hubei, SC)

• Year
• 1966 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 175659

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

• Number of Transistors
• 5

• Semiconductors
• 3AG1C 3AG1B 3AG1B 3AX71B 3AX71B 2AP9 2AP9

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s); Reflex

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• 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: Changjiang 长江 502 - Wuhan 武汉无线电厂 Wuhan Radio

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 310 x 135 x 130 mm / 12.2 x 5.3 x 5.1 inch

• Notes
• The model Changjiang 长江 502 has broadcast 535 to 1605 kHz and SW from 6 to 16 MHz.

• Literature/Schematics (1)
• 01-Transistor Radio Manual 1972, 2nd Ed. 2nd Print 1983 (page 110.)

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

• Other Models

• Here you find 13 models, 10 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wuhan 武汉无线电厂 Wuhan Radio Factory; Wuhan City (Hubei, SC)