• Country
• People's Republic of China

• Manufacturer / Brand
• Inner Mongolia 内蒙古无线电厂 Inner Mongolia Radio Factory; where?

• Year
• 1966 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 174404

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

• Number of Transistors
• 4

• Semiconductors
• 3AG21 3AG21 3AX22 3AX22 2AP10 2AP10

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

• Tuned circuits
• 4 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.

• from Radiomuseum.org
• Model: XianYangHua 向阴化 4JS1 - Inner Mongolia 内蒙古无线电厂

• Notes
• Also external 6 V possible. For the model 4JS2 and 4JS1 the documentation is the same including schematic. What is the difference? Xian 向 (Vorname, direction, orientation); Yang 阴 (overcast, hidden etc.) Hua 化 (to change, transform).

• Literature/Schematics (1)
• 01-Transistor Radio Manual 1972, 2nd Ed. 2nd Print 1983 (page 55.)

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

• Other Models

• Here you find 5 models, 1 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Inner Mongolia 内蒙古无线电厂 Inner Mongolia Radio Factory; where?