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Old 01-05-2011, 11:05 AM
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Fred Fred is offline
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Join Date: Oct 2005
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Quote:
Originally Posted by Geo View Post
Hi J_P.
The unknown capacitor C20 has capacity 10nF. So the two signals are mixed to Q1 via two 10nF capacitors
Regards
Everything in this circuit reminds me so much of the PD
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