>How do you more experienced MOTMers test new modules and DIY stuff?
I have a bench power supply and do my initial smoke tests there at
the bench. My bench and synth are not near each other. I have some
long cables that I run from other modules in my synth to the bench if
I need to (for example) supply a sawtooth wave from an oscillator to
the filter I'm testing. I calibrate most things at the bench with DVM
and scope. Exceptions are the 1V/OCT tracking which I usually do, by
ear, with the test module in situ. Sometimes I'll drag the scope out
to the synth if I really need to get a look at a waveform, but that's
quite rare.