Thank you guys for all your help!
Here's some photos:
The box on the left (look like a simple heatsink, but I guess thats what makes it a resistor box):
i.imgur.com/aTwkN4m.jpg
The PCB:
i.imgur.com/Gd3YM0g.jpg
And the pedal box:
i.imgur.com/OgyFc5H.jpg
AND A VIDEO!:
youtube.com/watch?v=8aiAngdlfyw
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