Hongqi 红旗 644
Beijing 北京无线电厂 Beijing Radio Factory; Beijing
- Country
- People's Republic of China
- Manufacturer / Brand
- Beijing 北京无线电厂 Beijing Radio Factory; Beijing
- Year
- 1966 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 176000
Manual
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- 6
- Main principle
- Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s); Reflex
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Dry Batteries
- Loudspeaker
- Permanent or electro-dynamic (moving coil), system not known yet.
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: Hongqi 红旗 644 - Beijing 北京无线电厂 Beijing Radio
- Shape
- Very small Portable or Pocket-Set (Handheld) < 8 inch.
- Dimensions (WHD)
- 162 x 92 x 42 mm / 6.4 x 3.6 x 1.7 inch
- Notes
- The model Hongqi 红旗 644 has broadcast plus SW 3.9 to 12 MHz.
Two or three AF stages switchable (then 2nd IF stage is reflexed as 1st AF stage).
- Literature/Schematics (1)
- 01-Transistor Radio Manual 1972, 2nd Ed. 2nd Print 1983 (page 185.)
- Author
- Model page created by Ernst Erb. See "Data change" for further contributors.
- Other Models
-
Here you find 20 models, 15 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Beijing 北京无线电厂 Beijing Radio Factory; Beijing