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Is this possible? Expression and volume in one...
Posted: Fri Sep 26, 2008 6:50 pm
by I Am Chris
I know toneczar has modded VP JR's that work as expressions, but I need a VP JR to function as both... volume for my signal, and expression for a different effect.
Is this possible? Does someone already make one? Any idea how to do it?
-Chris
Re: Is this possible? Expression and volume in one...
Posted: Fri Sep 26, 2008 10:01 pm
by aen
It should be easy as pie, but I don't know where to get parts. An expression pedal is just a pot that is turned vie the rocker mechanism.
Re: Is this possible? Expression and volume in one...
Posted: Fri Sep 26, 2008 11:34 pm
by metalmariachi
Is there room to place a switch and another output jack?
If you did that one jack could connect to the expression, and the other to standard input.
Putting a switch in would switch between them.
Or you could run both at the same time if thats what you had in mind.
MM
Re: Is this possible? Expression and volume in one...
Posted: Sat Sep 27, 2008 2:58 pm
by I Am Chris
I want to run them individually (one mode acts exactly as a volume pedal, hit a switch, flips over to control the expression of my hog).
i assume i could take the "tuner out" on the VP JR and use it for the expression. don't have room for a switch on the VP, but I think a small external single switch box would do the trick.
one of my concerns is... when i switch over to the expression side, what happens to my volume? is it left at the volume it was before I switched? or when it bypasses, will it be just my amp volume.
also, can anyone give me a more in depth explanation on how i make this work?
Re: Is this possible? Expression and volume in one...
Posted: Sun Sep 28, 2008 2:46 am
by glitch
It's cool to know how these things work. But if you start to get frustrated, I'm 99% certain that there's at least one pedal out on the market which does this (I just can't recall which one right now). I think it might be either the Behringer FCV100 or the Yamaha FC9. Let'cha know when I figure it out.
-- glitch.@#$%!
Re: Is this possible? Expression and volume in one...
Posted: Sun Sep 28, 2008 11:14 pm
by I Am Chris
i've come to the conclusion that it can't work.
i need the volume from the rocker pot. using one rocker, for two pots, and keeping the volume pot volume can't be done.
Re: Is this possible? Expression and volume in one...
Posted: Mon Sep 29, 2008 1:47 am
by glitch
Okay, the Behringer FCV100 can control both volume and expression simultaneously.
When in "CV" mode, Input/Output 1 acts as a straight mono volume pedal, while Output 2 is switched to be an expression pedal out.
If you want to switch off the volume control while still using the expression pedal function, just put the pedal in a true bypass loop. Doing the opposite -- using it only as a volume pedal while turning off the expression pedal function -- might be as simple as reaching down and changing the pedal mode from "CV" to "NORM".
-- glitch.@#$%!