[sdiy] CV inputs with bipolar "amount" knobs

[cheater cheater]

On Sun, Jul 25, 2010 at 19:28, David G. Dixon <dixon at interchange.ubc.ca> wrote:
>> >> But if you want the curve to be less steep around the center you want
>> >> an exponential or even better an nth power response such as x^3.
>
>> Regarding the x^n response: you can also just use x^2. It'll be better
>> (the central dead zone will still be significant while not taking up
>> as much range of the knob).
>
> You cannot achieve x^n responses with parallel resistors as I've described

no, but you can without using any resistors and by just using a VCA
approach and putting CV through the pot.

On another note: wouldn't there be a way of using a stereo pot and
using each channel of the pot as the attenuation pot of one of a pair
of op amps?

Cheers,
D.