Zhongshan 钟山 J302
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| 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). |
| Details | |
| Power type and voltage | Dry Batteries / 4.5 Volt |
| Loudspeaker | Permanent or electro-dynamic (moving coil), system not known yet. |
| Power out | |
| from Radiomuseum.org | Model: Zhongshan 钟山 J302 - 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 shows a rather simple but intelligent reflex superhet. For adjusting the base current of BG2 for the used transistor in the factory a pontentiometer-trimmer is used. |
| Literature/Schematics (1) | 01-Transistor Radio Manual 1972, 2nd Ed. 2nd Print 1983 (page 6.) |
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.
