Was Re: Musicians and EVs; now Wah-wah Potbox

[Bob Bath <farfromsmoggen@yahoo.com>]

The schematic I built (Craig Anderton, Electronic
Projects for Musicians) uses (2) 100K pots in stereo. 
The standard resistance for an EV is a 5K.  A wah wah
pedal is controlled either by pulley, or hall-effect
(electromagnetic) sensor, such as in the Boss line. 
One pitfall is that these mechanisms don't snap back
to "off"; a serious problem in EVs! (which could be
remedied with a spring, of course).  The next is
availability of a microswitch shutoff. Ernie Ball
pedals were about $50 when I last purchased, about $15
less than a regular potbox, I believe.  But you're
right, it's fun to think about!

> >   In fact, my interest in guitar dovetails with
> EVs
> >in the following manner: at age 13, I was building
> >"distortion boxes" (square wave from a guitar's
> sine
> >wave) for metal-heads at school.  Amazing how much
> >simpler the electronics are in an EV than a guitar
> >amplifier or distortion box!
> 
> Speaking of tying in electric guitars with EVs has
> anyone considered using
> a wawa pedal as a potentiometer?
> 


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