- Country
 - People's Republic of China
 
- Manufacturer / Brand
 - Shanghai No.2 上海电子器材二厂 Shanghai No.2 Electronic Equipment Factory; Shanghai
 
- Year
 - 1967 ??
 
- Category
 - Broadcast Receiver - or past WW2 Tuner
 
- Radiomuseum.org ID
 - 177892
 
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
 - 6
 
- Main principle
 - Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s); Reflex
 
- Tuned circuits
 - 5 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.
 
- Material
 - Plastics (no bakelite or catalin)
 
- from Radiomuseum.org
 - Model: Dujuan 杜鹃 612 - Shanghai No.2 上海电子器材二...
 
- Shape
 - Portable set > 8 inch (also usable without mains)
 
- Dimensions (WHD)
 - 226 x 115 x 48 mm / 8.9 x 4.5 x 1.9 inch
 
- Notes
 - The radio models Dujuan 杜鹃 612 and 614 are sharing the same schematic. They receive broadcast 535 - 1605 kc. The IF frequency is most probably 465 kc. Data: 1 mV/m 100 mW output. Loudspeaker 8 ohm.
 
- Mentioned in
 - 03-Transistor Radio Circuit Manual 1981 August (1 of 5) (page 52.)
 
- Literature/Schematics (1)
 - 02-Radio Manual unknown date, 380 pages (page 81, drawing 96.)
 
- Author
 - Model page created by Ernst Erb. See "Data change" for further contributors.
 
- Other Models
 - 
        
Here you find 5 models, 4 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Shanghai No.2 上海电子器材二厂 Shanghai No.2 Electronic Equipment Factory; Shanghai