Re: Park Auto-Wah circuit modifications
Posted by induction on
URL: http://guitar-fx-layouts.238.s1.nabble.com/Park-Auto-Wah-circuit-modifications-tp50577p50582.html
If the lfo gets faster with a bigger pot, then the build is not working correctly. But if you're happy with it, that's what matters.
You can certainly increase the 22k resistors connected to Q3 and Q4 bases. I would keep them equal to each other so the lfo doesn't get washed out. By the way, this is electronically exactly identical to increasing the speed pot. Just saying.
You can also reduce the speed by increasing with the 4k7s and/or the 2u2s in the bottom right corner of the layout. Again, I would keep them equal to each other for best results, but you can obviously do it however you like.
Here's the schematic in case you haven't seen it.
The LFO is the subcircuit on the bottom-left. Note the symmetry in R12/R13, R14/R15, C9/C10. Note also that R12, R13, R14, and R15 are in series with the speed pot. They serve the same function. The circuit can't really tell the difference between changing those resistors and changing the speed pot.
URL: http://guitar-fx-layouts.238.s1.nabble.com/Park-Auto-Wah-circuit-modifications-tp50577p50582.html
If the lfo gets faster with a bigger pot, then the build is not working correctly. But if you're happy with it, that's what matters.
You can certainly increase the 22k resistors connected to Q3 and Q4 bases. I would keep them equal to each other so the lfo doesn't get washed out. By the way, this is electronically exactly identical to increasing the speed pot. Just saying.
You can also reduce the speed by increasing with the 4k7s and/or the 2u2s in the bottom right corner of the layout. Again, I would keep them equal to each other for best results, but you can obviously do it however you like.
Here's the schematic in case you haven't seen it.
The LFO is the subcircuit on the bottom-left. Note the symmetry in R12/R13, R14/R15, C9/C10. Note also that R12, R13, R14, and R15 are in series with the speed pot. They serve the same function. The circuit can't really tell the difference between changing those resistors and changing the speed pot.
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