I recently found a schematic on the Elektor Instagram page of a "Soft Distortion" guitar effect that was from their 1997 issue of their magazine.

The schematic was a bit blurry and bunched together, making it hard to understand.

I have re-drawn the schematic and laid out a circuit board of this unique guitar pedal.

It features lots of audio filter circuits, gain and tone controls, plusa very unusual method of creating an asymetrical, soft-clipping feature.

I added a couple modification that I felt were necessary for a properly functioning circuit. These modifications are indicated on the schematic in RED.

It uses the Footpedal Switch Module and BuckBoost Module, which are also shared in my projects.