Red Lantern 红灯 735

Shanghai No.2 上海无线电二厂 Shanghai No.2 Radio Factory; Shanghai

Data
Forum
Pictures
Collections

  • Year
  • 1974
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 178435

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

 Technical Specifications

  • Number of Transistors
  • 29
  • Main principle
  • Superhet with RF-stage; ZF/IF 465/10700 kHz
  • Tuned circuits
  • 8 AM circuit(s)     8 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, more than 2 x SW plus FM or UHF.
  • Power type and voltage
  • Line / Batteries (any type) / AC 220 or Battery 8 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 5 inch = 12.7 cm
  • Power out
  • 2 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Red Lantern 红灯 735 - Shanghai No.2 上海无线电二厂
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 390 x 248 x 103 mm / 15.4 x 9.8 x 4.1 inch
  • Notes
  • China's most advanced portable transistor radio, model Red Lantern 红灯 (Hongdeng), uses Mosfet and AGC-controlled Dual-Gate Mosfet Transistors as RF preamplifiers. The FM IF section contains beside 5 L/C circuits two four-pole ceramic filters. In 1974, the Shanghai No.2 Radio Factory developed and produced 200 units of the Red Lantern model 735 all-bands portable upper-class radio. This was built for the needs of users and special departments who required high sensitivity reception. In 1976, Red Lantern 735 won the first prize from the 6th National Radio Appraisal Meeting.
  • Net weight (2.2 lb = 1 kg)
  • 6.6 kg / 14 lb 8.6 oz (14.537 lb)
  • Author
  • Model page created by Taili ZHANG. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum