/diy/ - Do It Yourself

>>1269638
At least one of the music anons seems to be more concerned about circuits like the phase shifter, whose behavior is a bit less obvious to someone who's not well-schooled in theory.

>>1269656
Separate grounds are used to prevent spikes and bounces on the digital ground from coupling into analog circuitry as noise. This is one of the situations in which the physical topology of the circuit becomes critical. You'll want to keep each ground's connections together in each ground group, decouple each group separately, then route them together to a common point. Likewise the supply vlotages. It should resemble Pic related.