• Country
• People's Republic of China

• Manufacturer / Brand
• Shanghai 101 上海一O一厂 Shanghai 101 Factory; Shanghai

• Year
• 1973/1974

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 180195

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

• Number of Transistors
• 6

• Semiconductors
• 3DG6 3DG6 3DG6 3DG6 3AX31B 3AX31B 2AP9 2CK 2CK

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 3 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Petrel 海燕 X412 - Shanghai 101 上海一O一厂

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 66 x 98 x 31 mm / 2.6 x 3.9 x 1.2 inch

• Notes
• The radio model Petrel 海燕 X412 (Haiyan, Sea Swallow) has the following key features 主要性能: Frequency range 频率范围: broadcast band 535 - 1605 kc. The models Petrel 海燕 X411 and X412 share the same documentation. The transistors 3B102 3B102 3B102 3B101 are given in the plan, totaling to 6 transitors as given in the text, but the list brings 5 x 3DG6 and 2 x 3AX31A on page 53 - which totals to 7 transistors... But again, 03-Transistor Radio Circuit Manual brings at page 23 6 transistors in the schemati and in the list.

• Mentioned in
• 03-Transistor Radio Circuit Manual 1981 August (1 of 5) (page 23)

• Literature/Schematics (1)
• 19-Radio Manual Shanghai 101 Factory, 1981 (26 models) (page 53.)

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

• Other Models

• Here you find 28 models, 28 with images and 27 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Shanghai 101 上海一O一厂 Shanghai 101 Factory; Shanghai