Re: Park Auto-Wah circuit modifications

Posted by induction on
URL: http://guitar-fx-layouts.238.s1.nabble.com/Park-Auto-Wah-circuit-modifications-tp50577p50584.html

Glad to help.

It's hard to say for sure without a demo, but if you think the LFO is not slow enough at 100k, there might be an issue with the build. If any of the components I mentioned in my last post have bad solder joints, the LFO speed could be affected. Here's a demo video you can use to compare the speeds that should be available with a 50k pot:

You can try a 500k speed pot too. It should slow things down noticeably at the low end of the pot range. You might not want to keep it, but it's worth a try just to make sure the build is behaving as expected. You could just as easily sub a fixed 470k resistor for the pot as a quick test.

If you'd like to mess around with the fixed resistors or caps in the LFO, it's totally fine. Those values are just chosen to get the speed range you want. It shouldn't hurt the operation of the circuit to modify them, as long as you keep the symmetry. That's what happens when you change the setting on the speed pot anyway. I just recommended changing the pot value because it's quick and easy.