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Old 13th Sep 2021, 6:35 am   #31
nzoomed
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Join Date: Feb 2016
Location: Tauranga, New Zealand
Posts: 132
Default Re: Advice on this linestage build

Quote:
Originally Posted by Radio Wrangler View Post
I'm not sure what that circuit would do. Your final triode is a cathode follower configuration giving no voltage gain so the loop gain has to be below unity, and no inversion. So with positive feedback it isn't really the usual Baxandall circuit. The amount of boost is not going to be much at all.

Watch out for DC on your bypass path versus whatever the tone control network floats at. I'd expect operating the bypass switch to create a loud noise.

David
I see what you mean, when I inserted that baxandall stage into roberts schematic, it wasn't really designed for that kind of tone stack.

I dont need huge gain, as essentially this will be used as a buffer stage with minimal gain from mostly digital sources and an RIAA stage.

What can be done to prevent noise when operating the bypass switch?
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