[sdiy] Expression pedal

[Peter Grenader]

Comrades,


Can anyone point me in the direction of a schematic for an expression pedal?
I know, i know - how lame is that.  The reason i need this is not to
understand how it works, but more the configuraion of the tip/ring/sleeve of
its I/O plug  so that what I am about to build doesn't blap my Novation to
all hell.

Here's the idea:

The Novation has an input for an expression pedal (bwah-ha-ha-ha-ha).  What
I believe it does is supply a +5 signal which is supplied by the Novation
which is then routed through a variable divider in the pedal, which returns
a voltage somewhat less than the supply back into the Novation, which can be
set up as a control sourve for anyone of a number of things with the
linearilty that only a non-midi intrument can afford.

OK, so how hard would it be to replace that pot (pedal) with a CV from a
modular?  Not too.  So this is want to do, but I definately don't want to
blap my Novation in the process.

Let me know anf thanks in advance,

Peter






Peter Grenader

http://www.buzzclick-music.com

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"Because of the decline in music education, we're producing not only
illiterate musical audiences, but arrogant ones. They have no idea what
music has been. So how can they have any idea what music is or could be?"

- Milton Babbitt

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