State Variable Filter Problems

[tomg]

I removed it about a year ago because people had so much 
trouble with it. I should have left it off...I can send you a
voltage chart that may or may not help...It really does work
but it seems to be a real hassle.

Tom



> I''m having some problems with the SVF 9a from tomg's site.  Obvious
> problems with what I'm doing, one I'm building it on veroboard because I
> only wanted a few of the features the pcboard version comes with because
> I'm using it as an independant proccessor otherwise the pcboard would be
> an obvious improvement.  So, that bad decision on my part aside.  I've
> checked my work a bunch of times.  It can pass audio through the lowpass
> out, but the knobs do nothing, Nothing comes out of either the bandpass
> of hipass outputs.  It can pass through the lowpass outputs whether it's
> on or not!  Can anybody give me some helpful advice?
>