I made this EQ, it sounds killer. Thanks again for the layout, KT.
I'm having a hard time with the switch wiring. Hopefully someone can help. I have in and out going directly to their respective jacks. I am using 3pdt foot switches for each channel of the EQ. When I switch on EQ1, I get a loud hum only. When I switch on EQ2, I get sound. However, if I turn up any of the controls I get oscillation. I know the board works fine, I tested the circuit before boxing. I think I just have the switching mucked up. Any help is greatly appreciated. I have it wired like this:
Thanks for your answer, KT. David Rolo took a look and he also said the switch wiring looks good, so I'm stumped! I'm pretty certain it's a grounding issue at this point. I have all the grounds connected to the ground pole on the power jack. The next thing I will try is to change out the jack. It's a high quality Lumberg jack, but hey... Even good quality parts can fail now and then.