looking for ring mod

[Hess Hodge]

Hello,
My first post, so please be patient with me... ;)
I was looking at some of the proposed face-plates for the ASM-1, and there
was one by Tim Walters that features a Ring-Modulator modification (that
features a switch to go from multiplication to division).  After a few
failed attempt at finding this circuit on the web, I have turned to you...
If anybody could provide me with information, I'd be very grateful...
thanks,
Hess

-/\= Hess M. Hodge
~/\  hess.hodge at colorado.edu
(/\) http://rtt.colorado.edu/~hodge