MIDI-to-CV converters

[Greg Montalbano]

I've been messing around with modifications to the SIEL DK-600 (splitting
the controls for LFOs I & II, adding external audio inputs, etc), and
noticed that, like other early MIDI synths (the SCI Six-Trak comes to
mind), this one converts MIDI information -- either incoming through the
port, or from the internal CPU board -- into analog control voltages;  the
DK-600 provides six perfectly useful pitch cvs, dynamics cvs and gates that
can drive external analog instruments.  The only problem with this
particular synth is the rotating note assignment, which makes it difficult
to use when driving something like a Pro-One.

My question is:  has anyone out there ever tried something like this with
the Six-Trak or some other early MIDI synth that employed MONO mode?  (sold
all my Six-Traks some time ago;  never got a chance to try this out).

~G~