Here is a new original design - The Eagle Claw octave fuzz
It's a very simple CMOS based circuit with a full wave rectifier for the octave up. Makes a fairly strong octave, but usual caveats apply for best results - humbuckers, neck pickup and tone rolled off.
For fun I threw together a short demo song for this one insted of a regular soundclip. This it how it sounds in context with drums and bass (I mixed the bass low). It has some minor eq for touch-up.
My completed pedal. It turned out ok, but the etch could have been alittle better. My toner is running out so the transfer wasn't that good to start with.
For this build I used a prototype dual layer PCB from OSH Park. PCB's will be avaliable for purchase when I get my webshop up and running. The last image shows the microphone placement in the demo. I only used one microphone on the drums. Why make it more complicated then it has to be? :)
The name is after the kung fu style. Here is one of my favourite movies that features the eagle claw style.
PCB avaliable in the shop