• Country
• People's Republic of China

• Manufacturer / Brand
• Nanjing 南京无线电厂 Nanjing Radio Factory, Nanjing

• Year
• 1958/1959

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 177144

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

• Number of Tubes
• 5

• Valves / Tubes
• 6А2П 6К4П 6Х2П 6Н1П 6Ц4П

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110; 220 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Hongxing 红星 Red Star 504-5 - Nanjing 南京无线电厂 Nanjing Radio

• Shape
• Tablemodel, low profile (big size).

• Notes
• The Hongxing 红星 Red Star modela 504-4, 504-5 and 504-6 share the same documentation on page 188ff, same schematic but different cabinets. Schematic is very similar to the ones with US tubes, also with a full mains transformer. Russian tube types in allglass technique, klick the tubes and you have the US or Europe equivalent. The wave bands are broadcast 520 - 1600 kHz, SW 3.9 - 8 and 9 - 16 MHz.

• Price in first year of sale
• 148.00 CNY

• Literature/Schematics (1)
• 10-Broadcast Radio Manual, July 1959 (1958/59) (188 ff.)

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

• Other Models

• Here you find 56 models, 45 with images and 26 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Nanjing 南京无线电厂 Nanjing Radio Factory, Nanjing