[sdiy] SSM2164 last time buys

[David G. Dixon]

> Yes to connect negative rail in positive pin16 the chip explodes so be
> careful. Also to connect negative rail in VCA output burns immediately the
> chip.

Wow, Oscar, your workshop must be littered with the maimed and charred
remains of 2164s!

Just to add another two cents here, you must also be very careful when
probing the pins of an active 2164, so as not to short the wrong two
adjacent pins accidentally with the probe.