> the a190-1 will do hz,
>
> here's the relevant info from the manual
>
> CV CHAR.
> This parameter sets the voltage control characteri-
> stics of the pitch CV output from the A-190, so that it’s
> possible to drive both common types of analog synth -
> older Korgs, Yamahas, etc., which have a linear re-
> sponse (Hz / V), and Rolands, ARPs, Moogs, etc.,
> which have a logarithmic response (1V / octave).
> H For use just with the A-100, the V / octave
> response is all that is needed. The Hz / V
> option is provided purely for connecting to
> external synths which use that standard.
> M M M M V / Octave : PROG CHANGE 3
> Hz / V : PROG CHANGE 4
>
> Paul

Just a remark: this feature is not mentioned in the product description of
the A-190-1 because we had no chance to test the Hz/V mode. As far as I
remember Hz/V we discussed if we should remove the Hz/V mode from the
A-190-1. But then we decided to leave it as kind of a "free gift" or hidden,
untested feature ! It was a bit tricky because it's not a linear scale as in
the V/octave mode. If one changes the scale in the Hz/V mode the complete
log scale is affected. That's why the Hz/V mode is not a feature that is
included in the product description.

Best wishes
Dieter Doepfer