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Huangshan 黄山 4J62

Huangshan 黄山 4J62; Hefei No.4 合肥无线... (ID = 801856) Radio
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Huangshan 黄山 4J62; Hefei No.4 合肥无线... (ID = 801856) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
Country:  People's Republic of China
Manufacturer / Brand:  Hefei No.4 合肥无线电四厂 Hefei No.4 Radio Factory; Hefei
Year: 1968 ?? Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 6: 3AG1D 3AG1B 3AG1B 3AG1B 3AX31B 3AX31B 3AX31B 2AP9 2AP9
Main principle Super-Heterodyne (Super in general); ZF/IF 465 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Power type and voltage Dry Batteries / 6 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Model: Huangshan 黄山 4J62 - Hefei No.4 合肥无线电四厂
Material Modern plastics (no Bakelite or Catalin)
Notes The radio model Huangshan 黄山 4J62 (Huang Mountain in Anhui Province) has the following key features 主要性能: Frequency range 频率范围: broadcast 535 - 1605 kc and SW 4 - 12 mc. The IF 中频频率 is 465 kc. Sensitivity 灵敏度: < 1 mV/m and 1.5 mV/m. Selectivity 选择性: > 26 dB. Set audio output 额定功率: 100 mW (200 mW). Electric power consumption 电源消耗 at zero signal 零信号: 10 mA, at max. it is 50 mA. Loudspeaker impedance is 8 ohm. 2 diodes. Some names of the AF transistors are not quite sure.
Literature/Schematics (1) 02-Radio Manual unknown date, 380 pages (page 173.)

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

All listed radios etc. from Hefei No.4 合肥无线电四厂 Hefei No.4 Radio Factory; Hefei
Here you find 2 models, 1 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.