[sdiy] State-variable VCF issue

[mark verbos]

you just make the input to the filter before the 3080. It's done that 
way in several state variable filters.

Tim Ressel wrote:

>Hey gang,
>
>My state-variable filter seems to clip alot and do
>other nasty things. I recall the old Paia 4700 series
>filter used a dual pot for the Q control with one
>section attenuating the input as the Q is increased.
>This had the effect of keeping the resonant peak at
>the center frequency from clipping. I would like to do
>something like this, but I have voltage controlled Q
>with a 3080 replacing the Q pot. Has anyone seen a
>circuit that say uses a second 3080 on the input? I
>don't know if the sense of the current for the input
>3080 would be the same or opposite that of the Q 3080.
>
>Help??
>
>--Tim
>
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