[sdiy] Synthasystem progress

[David Ingebretsen]

Just a quick update to those interested.

When Nyle came by the house a couple of weeks ago, I let him take the
sequencer prototype, VCO, EG, and a bare VCA board. Nyle wanted to tinker
around. Mostly I think he wanted to confirm some of the modifications he
added to his sequencer in the day which were never fully documented that we
wanted to add to the re-release version.

Anyway, he got the sequencer working, with the VCO and EG. He just finished
stuffing the VCA which appears to be working fine, too.

So, the only core module I haven't tested yet is the VCF.

I'll be ordering what I hope to be the release versions of PCBs this week
for:

VCO, VCF, VCA, triple EG, Sequencer, and some utility PCBs to convert back
and forth between S-Triggers and V-Triggers.

Some other good news is Nyle has been doing all his testing using +/-12
volts rather than +12 and -10, so it looks like there may be no need to
install any regulators on the power/regulator PCBs if you use +/-12 volts.
+/-15 volt systems will need to install the regulators to get down to +/-12
or +12/-10.

The project is coming along well.

I'm actually kind of jealous right now as Nyle has a basic "mini" system
working already...

David