• Country
• People's Republic of China

• Manufacturer / Brand
• Beijing 北京无线电厂 Beijing Radio Factory; Beijing

• Year
• 1968 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 178413

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

• Number of Transistors
• 7

• Semiconductors

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 4.5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Peony 牡丹 749 - Beijing 北京无线电厂 Beijing Radio

• Notes
• The radio model Peony 牡丹 749 (Mudan) offers the following key features 主要性能: Frequency range 频率范围: broadcast 525 - 1605 kc. The IF 中频频率 is 465 kc. Sensitivity 灵敏度 and selectivity 选择性: not given. Set audio output 额定功率: 200 mW. Electric power consumption 电源消耗 at zero signal 零信号: 18 mA, at max. it is 90 mA.Loudspeaker impedance is most probably 8 ohm. 3 diodes.

• Literature/Schematics (1)
• 02-Radio Manual unknown date, 380 pages (page 326.)

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

• Other Models

• Here you find 20 models, 15 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Beijing 北京无线电厂 Beijing Radio Factory; Beijing