Thanks for the tip, Lou - I have this problem with mine, been putting it off but it needs doing. Worst part is knowing the guy who got the oil on the friction drive - me! All it takes is one errant drop... 73 de Todd/'Boomer' KA1KAQ lou wrote: > I recently acquired a pristine SP-600 that has the common dial slippage > problem.Here are some things to try. >