Parasite Wah - Variable Q Mod

Stickman393

Well-known member
Just wanted to share this one for anybody who's interested.

It's trivially easy to add a variable Q control to the Parasite wah. I picked this up by dissecting the Hiwatt wah pedal: that one's based on the tychobrahe Parapedal, but with a couple of small changes to the circuit.

Basically, replace R4 with a 10Ka potentiometer with a 1.5K resistor across terminals 1&2. Terminal 3 goes to the side of R4 that is common with Pin 6 of IC1, Terminal 1 goers to the side of R4 that is common with Pin 7 of IC1.

Photo:

Screenshot 2025-03-23 131111.png
 
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