[sdiy] simple vcf

[René Schmitz]

At 14:51 19.10.02 -0400, you wrote:
>Hey all,
>I'd like to build a real simple VCF, it doesn't need to track a VCO, just do
>sweeps based on an input control envelope.  I'd like to develop a design
>that doesn't use OTA's.  Has anybody seen or worked on anything like this?

Hi Gavin,

maybe this one here http://www.uni-bonn.de/~uzs159/vcf4007_s.gif fits the bill.
Some of the resistors need to be dimensioned, but that would depend on your 
control voltages anyway.

Cheers,
 René
-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159