[baq]

Probably helps with ‘works on a breadboard but doesn’t when soldered on the protoboard’… guess what I’m trying to figure out today ;)

[fuzzfactor]

Layout, the constantly-evolving sub-discipline?

Which may be only one factor, or maybe somebody just placed a diode backwards :\

So there can really be some unsung variables that make you think.

Until your hair falls out . . .