Guitar Pedal X - GPX Blog - Jackson Audio's 4th Pedal - the Belle Starr Overdrive seems to be an Extraction and Extrapolation of the Amp-like MOSFET Boost Circuit from the Prism
MOSFET Boost Module – Build Your Own Clone
Amazon.com: Jackson Audio Amp Mode MOSFET Boost Guitar Effects Pedal, Silver (AMPMODE),Small : Toys & Games
Cap substitution in AMZ MOSFET booster? : r/diypedals
First design, a MOSFET cascode boost pedal. Voltage references in the second pic. Tried to design using values everyone would have around, so if you build one I would love to see
EarthQuaker Devices Black Eye Clean Boost
Jackson Audio Amp Mode Mosfet Boost Pedal | Reverb