This is the start of the testing and building for the Active Filters I’m wanting to make both for my home studio and for the festival in Cleveland. Last year I was using passive Low and High Pass filters and while they certainly worked at shaping the sound of the circuits being fed into them, there was still something lacking…. that of course being the quality and punch/kick/slap/tickle that comes with Active Filtering. So, today I breadboarded and then in a fit of absurd motivation, built completely on PCB, the new filters that I’ll be using.
Everything on these filters is working, though I need to spend a bit more time looking at how the grounding on the pots is working in relationship to both the input/output signal and the pots themselves… They definitely need to be connected in some manner, however I think there may be a better way of doing it. That said, the schematics I was looking at, were a bit lacking in this area, so I sort of had to wing it and go with instinct when putting it together.
The next stage in this build will be testing the above mentioned wiring on the pots/grounds and then seeing if perhaps this wouldn’t be a good thing to as a way to get into etching my own PCBs.