FW: [sdiy] Expression pedal

[phillip m gallo]

-----Original Message-----
From: phillip m gallo [mailto:philgallo at attglobal.net]
Sent: Tuesday, June 10, 2003 11:10 AM
To: Peter Grenader
Subject: RE: [sdiy] Expression pedal


Peter,

Here is a typical Roland EV-5 Expression pedal ref:

http://www.ne.jp/asahi/bdx/info/bdxtech/ev-5-schematics.html


regards,
p


-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Peter Grenader
Sent: Tuesday, June 10, 2003 10:18 AM
To: synthDIY
Subject: [sdiy] Expression pedal


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

____________________________________________________________________

"Because of the decline in music education, we're producing not only
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music has been. So how can they have any idea what music is or could be?"

- Milton Babbitt

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