> >The one I ultimately tried to breadboard > > was this one, posted by a kind soul on the list: > > > > http://world.conk.com/world/indridcold/vcf1.htm > > > > I couldn't get much out of it either, but a lot of the components > > aren't quite the right ones, This is not the EMS filter. We've been thru this a couple of times, so please check the archives. JH.