CV Crossfader?

[Joachim Verghese]

> > Does anyone have a good schematic for a CV crossfader?  Seems like it
> > would be similar to a CV'd mixer, but wouldn't you need non-linear 
> control?
> 
> Both lnear and expo crossfade are useful.
> The LFO/noise section of the Prophet 5 rev. 3 service manual shows
> a nice linear crossfade circuit. For expo crossfade, use a PNP
> long tailed pair to control the balance of the control currents of
> two OTA's.

The SSM-2024 data sheet shows how to build an exponential crossfader.

-joachim