[sdiy] TDA7052A as VCA

[David G. Dixon]

> > If it is true that operating wiht the neg rail disconnected fries the
> > chip, one would have to be careful about what happens as the + and -
> > power rails turn on.
> 
> Why does disconnecting the negative rail fry the 2164?
> Is it due to overheating (current limit) or voltage breakdown?
> The first could perhaps be protected against with suitable circuit design.

I don't think it was disconnected long enough to overheat.  I really don't
know.  It only happened once, and I don't plan on letting it happen again!