[sdiy] problem with a midi>cv converter... or is it a feature?

[Colin f]

> And Colin; yeah, a bad demux might do it. It'd be the 4052, 
> since that's the one that does the the CVs. That was why I 
> suggested the test with the dynamics CVs. They're on the 
> other chip, a 4051, and it seems unlikely they'd both go down 
> together. If they *were* both down, that suggests something 
> further back.

Ah, yeah - the 4052. Should have gone to spec savers :)
I'm always surprised when I see a 405x series analogue switch of that
vintage still working.

CHeers,
Colin f