Schematic for Formanta Solo II fuzz circuit
Posted: 13 Dec 2019, 21:37
Run across this schematic for the Formanta Solo II fuzz and edited out the phaser side and the rest of the guitar wiring. Oddly enough no gain control just a volume that doesn’t seem to reduce the gain. Any way to change that? I know it involves the feedback loop on the opamp but that’s about it.... Anyway for those looking to analyze or build it I will post the edited schematic which I found on cheesyguitars.com. Can’t seem to locate exactly where and who originally did the schematic but anyway here it is in all its glory. A modern day equivalent for the opamp is a MC1456 IIRC. And here’s a video of one I built with a NOS USSR era УД1408Б and some Russian silicon diodes as well. Originals were some other silicon diodes of some sort.