[sdiy] op amp based filter

[cheater cheater]

Cool. Without an actual test of how those things behave, though,
there's little to talk about. I guess this thing needs to be made and
tested.

Cheers,
D.

On Sun, Jul 25, 2010 at 19:16, Tom Wiltshire <tom at electricdruid.net> wrote:
> It can be done with vactrols too (Tremulus Lune, Korg PS Resonator, others, I'm sure).
>
> I doubt it helps with the linearity much though.
>
> T.
>
>
> On 25 Jul 2010, at 14:49, cheater cheater wrote:
>>
>> What are the best ways to make a normal op amp's gain programmable
>> with CV?
>