China preamp Xiang Sheng 768A - diyAudio
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Old 3rd November 2010, 06:46 PM   #1
piero7 is offline piero7  Italy
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Default China preamp Xiang Sheng 768A

I'm looking for schematic diagram of Xiang Sheng 768A china preamp

This one

Xiang Sheng "768A" Headphone + Pre Amplifier - 12AX7 + 6N3 + 6N11 + 6Z4 Tube Amp @ on9mart.com

thanks!
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Old 4th November 2010, 02:29 PM   #2
DF96 is offline DF96  England
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Some Chinese audio companies don't publish circuit diagrams. The good ones don't want their competitors to see them. The bad ones don't want their customers to see them.

There is a suggestion here that for another one of their products one of the valves is not actually in the circuit!
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Old 4th November 2010, 07:57 PM   #3
piero7 is offline piero7  Italy
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thanks anyway
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