voltage controlled wah pedal/bandpass filter

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jeepo
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Post by jeepo » Tue Sep 29, 2009 11:15 pm

I am new to electronics, and this forum, but my idea for cv implementation on an effect pedal, such as a wah, is simple, just replace the pot with a vactrol, which receives the control voltage. I have yet to try it, but i too have been thinking about adding cv to my wah, as well as a switch for multiple resonance settings.

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Voltor07
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Post by Voltor07 » Wed Sep 30, 2009 4:02 am

jeepo wrote:I am new to electronics, and this forum, but my idea for cv implementation on an effect pedal, such as a wah, is simple, just replace the pot with a vactrol, which receives the control voltage. I have yet to try it, but i too have been thinking about adding cv to my wah, as well as a switch for multiple resonance settings.
Welcome to the forum! Let us know how that works out! I believe that it will work, but there are a number of factors to consider when doing this. Good luck! :mrgreen:
Sub 37 #000068, Minitaur, CP-251, MF-102&103, EHX #1 Echo, EHX Space Drums/Crash Pads, QSC GX-3, Miracle Pianos, Walking Stick ribbon controller, Synthutron.com, 1983 Hammond organ.

saint gillis
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Re: voltage controlled wah pedal/bandpass filter

Post by saint gillis » Mon Mar 27, 2017 7:04 am

Hello, I did this : https://www.youtube.com/watch?v=iSaDV3AZzKY&t=15s

Read this article completely, it tells everything about wahs http://www.geofex.com/article_folders/w ... wahped.htm
And watch this great doc : https://www.youtube.com/watch?v=FOHZLX1qY48 (Cry baby the pedal that rocks the world)

jacobgoona
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Re: voltage controlled wah pedal/bandpass filter

Post by jacobgoona » Thu Jan 07, 2021 1:21 pm

I wanted to know if any knew the difference between a potentiometer and a rheostat. I found this article that explains a little bit but doesn't go into detail https://www.derf.com/rheostat-overview- ... planation/. Does anyone know the difference / have more detail to offer about it ?

Any and all help would be great, I cant figure it out they seem to be identical.

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Voltor07
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Re: voltage controlled wah pedal/bandpass filter

Post by Voltor07 » Fri Jan 08, 2021 9:59 pm

jacobgoona wrote: Thu Jan 07, 2021 1:21 pm I wanted to know if any knew the difference between a potentiometer and a rheostat. I found this article that explains a little bit but doesn't go into detail https://www.derf.com/rheostat-overview- ... planation/. Does anyone know the difference / have more detail to offer about it ?

Any and all help would be great, I cant figure it out they seem to be identical.
Rheostats are made of several different materials, such as, metal ribbons, fluids, and carbon disks. Potentiometers, on the other hand, are made with a resistive element, usually graphite, which is formed into an arc and a sliding contact or wiper that travels over the arc. The wiper is connected to another sliding contact to another terminal, and can be made from resistance wire, carbon particles, or cermet.
Sub 37 #000068, Minitaur, CP-251, MF-102&103, EHX #1 Echo, EHX Space Drums/Crash Pads, QSC GX-3, Miracle Pianos, Walking Stick ribbon controller, Synthutron.com, 1983 Hammond organ.

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