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June 30, 2022, 07:21:05 AM

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Help with the Clipping aspects of this SS Amp Circuit

Started by SemiConductive, April 05, 2022, 05:28:56 PM

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phatt

Quote from: SemiConductive on April 19, 2022, 06:20:38 PMThanks, @phatt. I am studying that and will compare to the sound samples I'm getting. Seems to make sense.

Couple more questions: To shift that mid dip... to 400hz as you suggest... is that a one or two component swap, or a rearrangement of the whole tone stack? I've played with stacks a bit in Duncan's Tone Simulator, but this thing doesn't really fit in there.

You can change R15 to 10k which will move the mid dip a bit lower but you will loose a little bass.

Quote from: SemiConductive on April 19, 2022, 06:20:38 PMBack on the capacitor C6, which is effectively filtering out treble: I've installed a switch and a pot for the diodes and played with that in conjunction with the overdrive (IC1-B) switching. It really is cutting a lot of treble. I think they were going for that dark boost tone. Misses the mark.

I know I can change the value of C6 to get more treble. Is it reasonable to just life C6 and see what it's like? Just "eliminate" the bypass? I can also try some lighter values but I'm wondering if it's safe to go to infinity.
Removing C6 will give more treble but it also might oscillate at high gain levels. Maybe try 100pF see what happens?

Phil.

SemiConductive

Thanks. I will give those mods a shot.

By "oscillate", you mean feedback? Or just an uncontrollable oscillation while operating?

Enzo

Feedback is one form of oscillation.  There are others.