Electric Effects, valeu irmão
7. It can be problematic to get 1M/EXP (reverse-audio) potentiometer for
POT2_RATE, I usually use 1M/LOG (audio) pot with reversed function in these
situations instead. PCB therefor leaves middle lug of this pot unconnected to be
ready for both scenarios. Jumper must be soldered to connect pot's middle lug with
one of outer lugs, depending on the pot type (as indicated on the layout pictures).