[sdiy] controliing a wah

[Harry Bissell Jr]

Go to www.geofex.com
and look up

The Technology of Wah Pedals

Version 1.7 9/27/99 - More wah circuits, how and why
the classic wah works, and some mods, plus connections
to human voice info

Copyright 1999 R.G. Keen all rights reserved. No
permission for local copies or posting from web sites
other than http://www.geofex.com/. 

which has craig anderton's version of a photocell
controlled (vactrol) wah. Do that !

H^) harry


--- Jena Jena <jena_mu_six at hotmail.com> wrote:
> Hi,
> 
> I just received a populated pcb of a Dunlop Cry Baby
> wah, which is fully 
> working.
> 
> I bought it with the intension to use it in my diy
> modular.
> 
> It's some kind of resonance filter() with a
> potentiometer to control the 
> filter frequentie.
> I would like to control the filter
> externally.....preferbly with CV....but 
> some kind of autowah would be cool to.
> 
> So my question is>
> Is it possible to make a resistor controllable by a
> voltage?  If so.....how?
> 
> Thanks,
> 
> Jean
> 
>
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