[sdiy] simple vcf

Paul Perry pfperry at melbpc.org.au
Sun Oct 20 03:03:25 CEST 2002


http://www.cgs.synth.net/modules/cgs35_syntha_vcf.html

It's a 4 transistor VCF - no OTAs. Just one op amp running as a buffer.

Ken

>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?
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au  
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>





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