The Refractor is a clone of one of the most legendary overdrives of the last 20 years. This is the Refractor pcb and the Refractor Bypass pcb.
The dimensions of the pcb are 71mm x 58mm. It is also available as ready to solder kit:
This project is by Aion Electronics. Since the modifications featured in this project require some basic knowledge, this project is rather for more experienced builders.
Here is the direct link to the manual with layout and schematic:
Here you can find build reports on this project: Build Reports