Haha, you guys are having fun with the word "mistake."
After all these years designing and modifying amps, I've learned one thing. Sometimes the best sounds come from things you didn't plan.
When I went back through my original schematics, I found something I hadn't intended to do in Dino's amp. But it sounded so good that nobody ever questioned it, including me!
Call it a mistake, a happy accident, or whatever you like. What matters is how the amp sounds.
And now I know exactly how to do it again.
Elan
demo with or on my cellphone