Thanks, Jim. I see that the Oakley VC Mixer uses the THAT2180 or THAT2181: http://www.oakleysound.co.uk/vcmix.htm -- john ----- Original Message ----- From: "James Patchell" <patchell at cox.net> > > For the voltage control element, I would recomend the THAT part ( > http://www.thatcorp.com ) which seems to be the one that ends up in the > high end mixing consoles.