MOTM

> I think this came up a while back; do the old Yamaha CS mono synths have
> normal 1v/octave CV outputs and regular gate or trigger outs that are
> compatible with MOTM?

I don't know if the CS monos had a V/Oct output (I doubt it).
But ...

I am currently expanding my CS-50 to be the center of a 4-voice polyphonic
Modular synth. While the polyphonic CVs will be V/Hz (as inside the CS-50),
it will have two extra V/Oct outputs for driving monophonic V/Oct gear
(such as MOTM) as well. What you need is (basically) a logarithmic converter
which is a standard building block more or less, but to make it useful for
musical purposes, I have added some features like octave range switches,
single trigger / multi trigger logic etc.
And I'm also bringing out some of the CS-50 internal modulation signals
(PWM LFO, "SUB" LFO, and Ring Mod OSC) with the interface as well.
It's almost finished, and I hope I'll be able to publish the schematics in a
few weeks. i don't know how close the monophonic CS synths are to the
CS-50, but I assume there are similarities.

JH.