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Old 15th May 2007, 06:17 PM   #41
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I think that this amplifier still needs some work.

I suggest that you take the power resistors off the Drains
of Q8 and Q9 and put them on the Sources, where they will
do some good.

I also suggest that you think about regulating the voltage
feeding R9 and R10 so as to stabilize the bias better, and
I think you could consider a cap to ground after R15 so as
to better filter the - rail to the front end.

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Old 16th May 2007, 10:54 AM   #42
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Location: Athens GREECE
Default thank you for posting

further testing bench and real life will be done with zener diodes included in the circuit plus the 2 recomendation of yours

thank you very much sir i will post results of that pretty soon
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