• Country
• People's Republic of China

• Manufacturer / Brand
• Shanghai No.2 上海无线电二厂 Shanghai No.2 Radio Factory; Shanghai

• Year
• 1966 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 176085

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

• Number of Transistors
• 7

• Semiconductors
• 3AG1C or. 3AG1D 3AG1B 3AG1B 3AX31D 3AX31D 3AX31B 3AX71B 2CP11 2AP9

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Dry Batteries / 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Red Lantern 红灯 2701 - Shanghai No.2 上海无线电二厂

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

• Dimensions (WHD)
• 190 x 102 x 48 mm / 7.5 x 4 x 1.9 inch

• Notes
• The model Red Lantern 红灯 2701 (Hongdeng) has broadcast 535 - 1605 kHz plus SW 3.9 - 9 MHz and SW 9 - 18 MHz. Sensitivity 灵敏度: < 1 mV/m. Selectivity 选择性: > 25 dB S/N. Set audio output 额定功率: 100 mW. The IF 中频频率 is most probably 465 kc. Loudspeaker impedance is 8 ohm. Schematic page 252 shows 3AX71B instead of 3AX31B etc.

• Mentioned in
• 16-Radio Manual Shanghai No.2 Radio Factory, 1981 (71 pages) (page 10.)

• Literature/Schematics (1)
• 01-Transistor Radio Manual 1972, 2nd Ed. 2nd Print 1983 (page 252.)

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

• Other Models

• Here you find 67 models, 64 with images and 40 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Shanghai No.2 上海无线电二厂 Shanghai No.2 Radio Factory; Shanghai