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RE: non-inverting preamp w/schematic ...

Personally, I think phase inversion is the least of your worries with this preamp.
I would remove R4,6,7 completely and make your second stage a cathode follower. Use the 33k plate resistor as U1's cathode resistor. Direct couple U1 to U2, thereby eliminating all global feedback, and one coupling cap.
Your output impedance drops significantly, gain stays about the same, frequency response is better and distortion is about half.
The only disadvantage is phase reversal, and that is only a disadvantage to you.
Dan Santoni


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  • RE: non-inverting preamp w/schematic ... - Blackdog 20:51:31 06/16/17 (0)

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