Huanghe 黄河 741A
Zhengzhou 郑州无线电厂 Zhengzhou Radio Factory; Zhengzhou
- Country
- People's Republic of China
- Manufacturer / Brand
- Zhengzhou 郑州无线电厂 Zhengzhou Radio Factory; Zhengzhou
- Year
- 1968 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 178299
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- 7
- Main principle
- Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Dry Batteries / 4.5 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: Huanghe 黄河 741A - Zhengzhou 郑州无线电厂
- Notes
- The radio model Huanghe 黄河 741A (Yellow River) has the following key features 主要性能: Frequency range 频率范围: broadcast 525 - 1605 kc. The model 741 has only 535 - 1605 kc! The IF 中频频率 is 465 kc. Sensitivity 灵敏度: < 1 mV/m. Selectivity 选择性: > 14 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: s not given. Loudspeaker impedance is 8 ohm. 1 diode.
- Literature/Schematics (1)
- 02-Radio Manual unknown date, 380 pages (page 175.)
- Author
- Model page created by Ernst Erb. See "Data change" for further contributors.
- Other Models
-
Here you find 8 models, 6 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Zhengzhou 郑州无线电厂 Zhengzhou Radio Factory; Zhengzhou