I'm getting ready to build a PWB clone for my brother's birthday. I have a Dunlop wah shell I will use but have two problems with the schematic as I see it now.
It takes 55VDC and 25VDC. I don't wish to work with a transformer due to voltage concerns. Using replacement jfets would it be possible to run it off a single 9v? I could to two 9v's but prefer not to.
The second problem and more important, is it's a LDR based wah. Looking at the schematic I believe it works by filtering the negative feedback much like on amplifiers. The problem I'm having is I don't know where the ldr's led is comming from. Thank's for your time.
Opps, forgot the link to the schematic.....
http://www.morleypedals.com/pwbes.pdf