21-09-2018, 05:17 PM
It is Jeffrey and I have. Remember there's two. I've gotten really fed up sometimes as the project just seems to keep dragging on, especially when I've made a few daft mistakes. However after some tinkering it has pretty good specs - frequency response flat from 15hz to 25khz, 0.2% THD @ 100w. There is one issue it has that needs looking at, namely it starts to self oscillate with a speaker attached just before switch off, making me jumps with a loud squeek. An RC LPF on the OP stage should sort that though.
Andy.
Andy.
