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Zhongshan 钟山 J302-A

Country:  People's Republic of China
Manufacturer / Brand:  Nanjing 南京无线电仪器厂 Nanjing Radio Apparatus Factory; Zhongshan
Year: 1966 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 2AP1
Semiconductors (the count is only for transistors) 3: 3AG1D 3AG1D 3AX71B 2AP9
Main principle Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s); Reflex
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Dry Batteries / 4.5 Volt
Loudspeaker Permanent or electro-dynamic (moving coil), system not known yet.
Power out
from Model: Zhongshan 钟山 J302-A - Nanjing 南京无线电仪器厂
Material Plastics (no bakelite or catalin)
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Notes Model Zhongshan 钟山 J302 showd a rather simple but intelligent reflex superhet. The follower is J302-A with a much nicer case.

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

All listed radios etc. from Nanjing 南京无线电仪器厂 Nanjing Radio Apparatus Factory; Zhongshan
Here you find 3 models, 1 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.