The Dual Voice Filter is a project by the famous Craig Anderton from the 70ies. It is a Low/Mid Frequency Sweep Filter and einen Mid/High Frequency Sweep Filter. This signal can be mixed to the clean signal. Best watch the video, to see what is possible eith that device!
It is a very complex project, so not the best choice for a beginner!
The dimensions of the pcb are 55x57mm.
This project is by GuitarPCB.com, in cooperation with Musikding. For any technical problem relating to building this project, please contact Barry at GuitarPCB.com forum.
You get full technical support at the GuitarPCB.com forum, membership is free of course! There is even more detailed build information available there:
Here is the website for this project, only available when you are registered at the forum:
Here is the direct link to the building docs, including layout and schematic:
Here you can find demos for nearly all GuitarPCB projects: