• Country
• People's Republic of China

• Manufacturer / Brand
• Nanjing 熊猫电子集团 Nanjing Panda Electronics Group Co, Ltd. (PEG); Nanjing

• Year
• 1973 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 337475

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

• Number of Tubes
• 16

• Valves / Tubes

• Number of Transistors
• 16

• Semiconductors
• 3DG11 3DG11 3DG11 3DK7 3AG25 3AG25 3AG25 3AG29A 3BX02 3AX24 3AX24 3AX22 3AX62 3AX62 3BX02 3AD4

• Main principle
• Superhet with RF-stage; ZF/IF 465 kHz; 3 AF stage(s)

• Tuned circuits
• 10 AM circuit(s)

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Batteries / addl. power jack / 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 13 cm = 5.1 inch

• Power out
• 0.5 W (1.5 W max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Panda B-11 - Nanjing 熊猫电子集团 Nanjing

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 412 x 212 x 112 mm / 16.2 x 8.3 x 4.4 inch

• Notes

• This model was developed for workers and soldiers who were serving in remote areas and on islands. With this receiver they could listen to radio broadcasting in places where conventional commercial radio receivers performed poorly. For this reason, and its relatively high cost, this model was not available in consumer markets.

  It supports MW band (535-1605KHz) and 9 SW bands, respectively 1.6-3.2MHz, 3.2-4.2MHz, 4.2--5.6MHz, 5.6-7.4MHz, 7.4-9.7MHz, 9.7-12.8MHz, 12.8-16.8MHz, 16.8-22MHz, 22-26MHz.

  Sensitivity: MW 0.5mV/m, SW 50uV/m

  Selectivity: 36dB

  Noteworthy Technical features include:

  1. Cascade BJT amplifier at RF stage
  2. Ceramic filter included into IF stage to improve selectivity
  3. Carefully designed and deployed AGC mechanisms
  4. RF and IF stages powered with regulated power supply.

  Three generations of this model were offered. The first generation is fully powered with batteries, without built-in AC/DC adapter board, so it has 14 transistors. The 2^nd and 3^rd generations can also be powered by a built-in AC/DC adapter board, and both them have 16 transistors. The 3^rd generation has white switch knobs.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Price in first year of sale
• 250.00 RMB

• Author
• Model page created by Yu Zhu. See "Data change" for further contributors.

• Other Models

• Here you find 14 models, 13 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Nanjing 熊猫电子集团 Nanjing Panda Electronics Group Co, Ltd. (PEG); Nanjing