Xinshidai 新时代 102 / 552-7A (557-2甲)

Shanghai 上海无线电厂 Shanghai Radio Factory, Shanghai (E)

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  • Year
  • 1958
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 176177

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • 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: Xinshidai 新时代 102 / 552-7A - Shanghai 上海无线电厂 Shanghai
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • The models Gongli 公利 (engl. "public interest") 102 and Xinshidai 新时代 (engl. "New Age") 552-7A (552-7甲) share the same schematic and documentation. They are similar to 552-6 but use US-type tubes. Reception is also broadcast band 550 - 1600 kHz (187 - 545 m) and SW 3.9 - 12.1 MHz (24.8 - 76.9 m). The tubes are given as 6SA7 etc. but we believe they are Glass Tubular tubes (GT-Version). See also Xinshidai 新时代 552-7 with the equivalent models Gongli 公利 101, 103 and 104 before you upload pictures and check the other.

    The same applies for the following similar families: 552-6 for 101-A and model 552-8 shows the same documentation as Gongli 105, 106, 107, 108 and 109. See also 552-7A for Gongli 102. There are also 552 and Gongli 552-3, 552-4 and 552-5 for this schematic manual 1958/59. We presume that one of the brands is for export, but don't know yet which one.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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