original and ingenious circuits ... (was: in How the heck does th e MS-50 filter WORK?)

[Haible Juergen]

	>>Not bad, these Korg people !!
	>.....certainly, the Korg ckts are highly original and creative!
	[...]
	>One of the most interesting things about synths is the way some are
designed
	>originally, while others are cobbled together from bits from all
over..
	>paul perry melbourne australia

Wouldn't this make a great thread for the diy list? Original circuits
in commercial synths, instead of variations on well proven previous
circuits ?

I mean, I don't have anything against the latter, but the greatest joy in
reading these old schemos is when I find something that is really
different from previous stuff.

Many of these things are well known meanwhile, and I don't want
to start another "praise your favorite low pass filter" ... (;->)

So, what little circuit details made the greatest impression on all
of you ? What I have in mind is *not* "what new function / module"
(would be another interesting thread, though), but what are the most
astounding realizations of certain functions ? (to give one example,
one of these things was when I discovered the ARP phaser cascade ...)

So, if you like this topic, write what were important circuit discoveries
for you !

JH.