>>>>> "t" == tomg <vco at mindspring.com> writes: t> One of the guys on the list sent me this a few months t> ago. I think it may be what your talking about. t> http://www.mindspring.com/~vco/misc/hexvca.gif Yes, but the URL is http://www.mindspring.com/~vco/misc/pics/hexvca.gif It's complete with linearizing and offset trimming. Cheers, Magnus