The Pinball v3 is available for a limited time on Indiegogo - https://igg.me/at/vfepedals/x/6291829#/
This is a walkthrough of the Pinball v3 mid booster & tilt EQ circuit. I go through each section of the circuit and outline the principles of how each section works. Check out more DIY resources at https://www.vfepedals.com/diy