Wed Jan 12 22:07:01 EST 2011

Synth: just build it?

Detach from the possible, attach to the feasible.

I think all of the obvious mistakes are removed.  I don't know what to
do with the envelopes yet, but maybe that's really something to worry
about when I have something running.  The VCO, VCF, VCA should be
enough to start with.

For the envelopes, one thing to figure out is what the max rise and
fall times are in the current PWM setting.  Maybe there is no problem
at all, and maybe using 2 regimes could solve it, using 2
charge/discharge resistors, one for envelopes and one for sustained