Hongdeng 红灯 783
Shanghai No.2 上海无线电二厂 Shanghai No.2 Radio Factory; Shanghai
- Country
- People's Republic of China
- Manufacturer / Brand
- Shanghai No.2 上海无线电二厂 Shanghai No.2 Radio Factory; Shanghai
- Year
- 1974 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 179335
- Number of Transistors
- 37
- Semiconductors
- Main principle
- Superhet with RF-stage; ZF/IF 465/10700 kHz
- Wave bands
- Broadcast, more than 2 SW bands plus FM or UHF.
- Power type and voltage
- Alternating Current supply (AC) / 220 Volt
- Loudspeaker
- - This model requires external speaker(s).
- from Radiomuseum.org
- Model: Hongdeng 红灯 783 - Shanghai No.2 上海无线电二厂
- Shape
- Book-shelf unit.
- Notes
- Hongdeng 红灯 783 (Red Lantern - we don't know what is written on the case) receives broadcast band 525 - 1605 kHz, SW 3.2 - 5.2 MHz, 6 - 9.9 MHz, 11.7 - 15.5 MHz, 17.7 - 22 MHz and FM 88 - 108 MHz. Hongdeng/Red Lantern 783 has a sensitivity 灵敏度 of: < 0.3 mV/m (30uV). Selectivity 选择性: > 40 (36) dB S/N. Set audio output 额定功率: 50 W. The IF 中频频率 is most probably 465 kc and 10700 kc for FM. Separate loudspeakers. About 37 transistors incl 3 dual gate FETs, one for AM. Two instruments.
- Literature/Schematics (1)
- 16-Radio Manual Shanghai No.2 Radio Factory, 1981 (71 pages) (page 44.)
- Author
- Model page created by Ernst Erb. See "Data change" for further contributors.
- Other Models
-
Here you find 67 models, 64 with images and 40 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Shanghai No.2 上海无线电二厂 Shanghai No.2 Radio Factory; Shanghai