Yeah, I screwed up that one 
ā and doubly so since I forgot to solder that resistor at first, and when I got to the cap and realized that I had to fit the resistor in there too Iād already trimmed the capacitor legs, so couldnāt put the resistor under the cap. Iāve verified that the headers still fit, though, so good enough for this first board 
(thereās only six nine things on the TODO list for revision 2 this far, but admittedly thatās before any serious electrical testing. But it could be worse 
)
EDIT: The exponential converter doesnāt work properly. Annoying. But gave me some ideas that might help people debug MS20 output levels.
EDIT II: That was yet another obviously misconfigured opamp. I really need to add āverify that opamp topologies make at least some senseā to my PCB design checklist 