Didn't run into that on mine but guess I know what to do now if the problem develops ......... Dennis D. W7QHO Glendale, CA On Jun 19, 2010, at 3:21 PM, <arc5 at ix.netcom.com> wrote: > It's been many years since I worked on an R-808, > but I remember all that I ever saw had a similar problem- > mechanical instability.