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Zhenzhu 珍珠 708

Zhenzhu 珍珠 708; Bengbu No.1 蚌埠无线电一厂 (ID = 821365) Radio
 
Zhenzhu 珍珠 708; Bengbu No.1 蚌埠无线电一厂 (ID = 821366) Radio
Zhenzhu 珍珠 708; Bengbu No.1 蚌埠无线电一厂 (ID = 817091) Radio
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Zhenzhu 珍珠 708; Bengbu No.1 蚌埠无线电一厂 (ID = 817091) Radio
Bengbu No.1 蚌埠无线电一厂: Zhenzhu 珍珠 708 [Radio] ID = 817091 656x513
Select picture or schematic to display from thumbnails on the right and click for download.
For model Zhenzhu 珍珠 708, Bengbu No.1 蚌埠无线电一厂 Bengbu No.1 Radio Factory; Bengbu (Anhui, E):
Picture from the Transistor Radio Circuit Manual August 1981 vol. 1 of 5 (internal 03), page 297 for reference when somebody is uploading real photos and as reference for collectors, comparing models.
 
Country:  People's Republic of China
Manufacturer / Brand:  Bengbu No.1 蚌埠无线电一厂 Bengbu No.1 Radio Factory; Bengbu (Anhui, E)
Year: 1972 ?? Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 7: 3DG8 3DG8 3DG8 3DG8 3DG8 3AX81B 3AX81B 2CP10 2CP10 2AP9
Main principle Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Dry Batteries / 4.5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: Zhenzhu 珍珠 708 - Bengbu No.1 蚌埠无线电一厂 Bengbu No.
Shape Tablemodel, Mantel/Midget/Compact up to 14" width, but not a Portable (See power data. Sometimes with handle but for mains only).
Dimensions (WHD) 287 x 132 x 77 mm / 11.3 x 5.2 x 3 inch
Notes The radio model Zhenzhu 珍珠 708 (Pearl) receives broadcast 535 - 1605 kc. Sensitivity 灵敏度: 1.5 mV/m. Selectivity 选择性: 16 dB (S/N). Set audio output 额定功率: 200 mW. Electric power consumption 电源消耗 at zero signal 零信号: 12 mA, at max. it is 100 mA. The IF frequency is most probably 465 kc. Loudspeaker for 8 ohm. 3 diodes.
Literature/Schematics (1) 03-Transistor Radio Circuit Manual 1981 August (1 of 5) (page 297.)

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



All listed radios etc. from Bengbu No.1 蚌埠无线电一厂 Bengbu No.1 Radio Factory; Bengbu (Anhui, E)
Here you find 3 models, 1 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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