> > Place a large capacitor across power supply and see how it goes. > > Place a large capacitor across power supply and see how it goes. > > Place a large ... > Hmmmm... There seems to be a rather large echo in here somewhere... :-) Echo there may be but logical response there still, it seemeth, be not. If problem solution , rather than companionable chat, is the aim of the exercise then any more discussion until you have tried the super simple task of placing a large capacitor across power supply and seeing how it goes (did you hear an echo) is worse than pointless. . Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .