Hi, i'm at a loss here. this is like the third amp i've built lately and all three of them have this crazy buzzing when the tube starts overdriving. I'm using 6sl7gt preamp and 6l6 power tube from a 5y3 rect.tube. I've tried lowering the cathode resistors. changed the layout thinking maybe that would've helped, everything has been changed out and still won't go away. the only thing that makes it go away is keeping it at low volumes before any overdrive. I ran a distortion peddle into it and it sounded better but only because it covered it up. Here's a schmatic, if someone would like to help
. this is a completly new build.
. this is a completly new build.
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