Hi Rich, Thanks for the information.
Perhaps you could provide some more real useful data -
I suspect that the closest one could get to 1V/Octave CV out is if you set the field for exactly 5 octaves, with 0-5V Out... You see, I suspect that the field is squeezed into the output voltage 'span' - so one might get 2V/Octave if you set 5 octaves on the 0-10V setting (I go into absurd detail here based on this entirely untested hypothesis)
I expect you will get extremely non-linear CV out no matter what you do, as even if the CV does track the theremini pitch, the pitch / distance relationship is extremely non linear..
But if you have any 1V/Octave VCO's and the CV does track the pitch, then I suspect you will only get this to work when the field spans 5 octaves and 0-5V output is selected.
If you were able to try this and give feedback, one hypothesis would either be trashed, or perhaps become a theory! ;-)
(in fact, even if you dont have a 1V/Octave VCO, if you could play your lowest note, record the voltage, move an octave higher and record this voltage, and do this for the 5 octaves, then, if the voltage increases by one volt per octave, we know that some tracking is actually happening! - on any setting, the voltage should increase by a fixed amount for every octave increase if the theremini CV is tracking the theremini pitch in a exponentiated way - the output CV should be a linearized representation of the pitch, as in the voltage difference between each semitone should be the same.)
Any data you could provide would be extremely useful to feed the curiosity of folks like me, but hopefully (possibly more important ;-) to assist others wanting to use CV.
Fred.
(Having now seen some videos of people using theremini CV out with modulars, I have not yet seen a single instance where the synth tracked the theremini pitch - most cases it looks like far more than 1V/Octave is being output, and the synth is just being used as an effect and small hand movement sweeps a large frequency span)