I didn't know if anyone could potentially use this, but I wasn't able to find one already after some searching and thought I would share. I made a reasonably quick schematic and board of the Mod Matrix in Eagle for the C64-based front-panel (available off ucapps). I took some careful measurements and it should line up rather nicely with the panel template. It doesn't include the volume section because the original template doesn't. I'm trying to see if there's enough room on my C64 case to add t