Parametric EQ Schem

[Christopher_List at Sonymusic.Com]

Hi List -

I've been quite for a while - actually working on music (for a change) and
busting my hump here at work. I still haven't sent the images to Metalphoto
for the new faceplates, but soon, I promise....

Anyway, my question is:
Parametric EQs - are they hard to build?
Is there some trick to how they work?
Why does it seem like they are rare in modulars and schems are equally
rare?
Seems like they shouldn't be THAT complicated...
Anyone know where I can find a schem or two on the www?
I looked a little but came up with nothing.

- Thanks,
Chris