25 Dec 2014, 21:52
I have several hundred 218's and never a problem w/silver oxide batts.Occasionally a 214 will give me problems.I have had only one 9160(out of over 100)over index.It was a NOS that never was touched by anyone.I have a few old mercury batts that still hold at 135V's and put one in the 9160 and it holds perfect time.Not a cure but I know now that it is not another type of problem.Rob from oz deals with it by using his system for resetting index range so there is no need for diodes.His expertise of all hummers is legendary. The Accutron Watch Page has all kinds of good info.I have read and reread the entire site many times through the yrs.Go there,do that.I hope it helps.