Tony writes:
>>Don't you just want a big cap? Something like 1uF non polar may do the trick.
Shove it inside a jack plug in series with the CV line. A bit crude but it may
just work....<<
That's such a simple solution I don't know why I didn't think of it. I'll give
something like that a try and see if it works. Thanks for the other comments
too. Now that people are refering to it as a differentiator, I'm sure I have
one or more schematics in some books for such a thing just incase the above
doesn't work out.
-Elhardt