• Country
• People's Republic of China

• Manufacturer / Brand
• Shanghai 上海无线电厂 Shanghai Radio Factory, Shanghai (E)

• Year
• 1958

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 176805

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

• Number of Tubes
• 4

• Valves / Tubes
• 1А2П 1К2П 1Б2П 2П2П

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 67.5 & 6 / 110; 220 Volt

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• from Radiomuseum.org
• Model: Shanghai 上海 451 [square edges] - Shanghai 上海无线电厂 Shanghai

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

• Notes
• This tube radio exists at least in two versions: This one with rounded edges (1957) and another one with square edges (1958). See an article from ZTL here about it - and some transistor sets with the same number designation,上海 451.

• Literature/Schematics (1)
• 10-Broadcast Radio Manual, July 1959 (1958/59) (page 84. No schematic - see the older model for that.)

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

• Other Models

• Here you find 71 models, 68 with images and 70 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Shanghai 上海无线电厂 Shanghai Radio Factory, Shanghai (E)