I did ROG 22/7 the other day and I instantly fell in love with it! Then I did Way Huge Red Llama and man, what a great overdrive.
So I decided to scan the net on CMOS based distortions and overdrives and stumbled on this.
CMOS DS1 SchematicDrew a layout and built it and it sounded decent, pretty true to the original which meant I had to modify it
.
Changed input and bypass caps to larger values found in the old MIJ version and swapped the silicon diodes for orange LED's. Now it's a loud and and quite evil fuzz perfect for down tuned heavy stoner rock.
Vero with stock values.
Vero with mods.
Both are verified, now I just have to add a gain control...