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Zhujiang 珠江 SB12-1

Zhujiang 珠江 SB12-1; Guangzhou 广州曙光无... (ID = 804626) Radio
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Zhujiang 珠江 SB12-1; Guangzhou 广州曙光无... (ID = 804626) Radio
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Country:  People's Republic of China
Manufacturer / Brand:  Guangzhou 广州曙光无线电厂 Guangzhou Shuguang Radio Factory; Guangzhou
Year: 1968 ?? Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 12: 3AG24 3AG21 3AG21 3AG21 3AX23 3AX23 3AX23 3AX22 3AX31C 3AD6C 3AD6C 3AX22
Main principle Super-Heterodyne (Super in general); ZF/IF 465 kHz; 3 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast plus 2 Short Wave bands.
Details
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: Zhujiang 珠江 SB12-1 - Guangzhou 广州曙光无线电厂
Notes The model Zhujiang 珠江 SB12-1 (Pearl River) has the following key features 主要性能: Frequency range 频率范围: broadcast band 535 - 1605 kc and SW 4 - 9 mc plus 9 - 18 mc. Sensitivity 灵敏度: < 1 mV/m. Selectivity 选择性: > 20 dB S/N. Set audio output 额定功率: 3 watt. The IF 中频频率 is most probably 465 kc. Loudspeaker external 4 or 8 ohm. 2 diodes, 1 zener diode and 4 diodes for rectifier.
Literature/Schematics (1) 02-Radio Manual unknown date, 380 pages (page 355.)

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



All listed radios etc. from Guangzhou 广州曙光无线电厂 Guangzhou Shuguang Radio Factory; Guangzhou
Here you find 3 models, 2 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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