I see... thank you Ken and Charles
>
> >Does anyone tried to build a CGS29 WaveMultiplier using LEDs or GE diodes?
> >
> >...any resistor values should have to be changed before/within/after the
> chain of folders?
>
> To sum it up - it's pointless. All you do is change the voltage levels at
> which the clipping occurs. You then need to compensate elsewhere. The
> difference is exactly the same as what you get by varying the CV on the
> input VCA (Folds input).
>
> Ken