Cgs synth

Hi. I have find a circuit to add a CV controlled resonance for the
PAiA FatMan ( http://home1.gte.net/res0658s/FatMan/vc_rez.html
). I wonder if this can be applied to the new CGS filter. I don't
know how to adapt it. Any opinion/idea/help? Thanx all.
f
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It may work. It looks like they are using the 13700 as a voltage controlled
resistor. There are a couple of different versions in the 13700 datasheet.

Nyle sketched up an improved resonance control which I will investigate.
This one has the resonance pot going to ground, so maybe a FET or a 4049
could be used instead.

Don't forget, the good old vactrol can always be used too.
Rene Schmitz. http://www.uni-bonn.de/~uzs159 has a LED driver in his tube
VCF that can be used for that.

Ken

Thank you Ken. I can not design, so I hope you post any possible
mod and conclusions about VControlling the resonance... :)
Meanwhile, we'll wait for the board!
f
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