Hi Greg, I'm thinking *external* in a nice brass box :-) Simon Brown, HB9DRV ----- Original Message ----- From: "FISCHER,GREG" <ab7r at cablespeed.com> > The knob on the K3 is weighted and a custom design (and > very nice as is). I don't think the physical size of the > K3 could accomodate a larger knob.