Yamaha CS80

Thanks. However, the korg MS-04 seems to be an expensive solution I'm afraid.
Maybe it makes sense to install a modification on the CS80:
Changing the external-in jack from an input to a situation that it sends out a copy of the sine-subosc-wave. Connecting a cheap, passive pedal (Tip-Sleeve, just with a resistor in it) makes it possible to control the depth of this signal by feet while changing speed by applying aftertouch. I guess this is a simple mod for those who practice electronics.

Or am I thinking to simple. Maybe you'll have to install an opamp that is fed by the sine-wave to achieve this and control the amplification of this opamp with the pedal ?

--- In yamahacs80@yahoogroups.com, "Vorderwinkler Karl" <karl.vorderwinkler@...> wrote:
>
> The Korg MS-04 pedal might be what you are looking for. It works with a 9V
> DC or battery and belongs to the vintage MS-02/10/20/50 family. It is
> amazingly solid and very flexible.
> If you really want to replace your 2600, send it to me and I`ll send you
> my MS-04 in exchange...  (c:
> 
> Regards,
> Paul.
> 
> 
> > Just tried to feed a sine-wave from an ARP2600 into the
> > sub-osc-external-in on the back of the CS80. I controlled the amplitude of
> > the sinewave by controlling the APR's VCA with a cv-pedal. That works very
> > good for Oberheim-type of vibrato's.
> > I tried 2 settings:
> > +/- 40mV
> > +/- 400mV
> > and both work great by adjusting the external-in-knob on the back.
> >
> > It would be nice to replace my 2600 for a foot-pedal with that function
> > ;-) It would require an active (battery-power) pedal with adjustable
> > speed. Does such a pedal exist ?
> >
> >
>