On Wed, 3 Dec 2003, John J. McDonough wrote: > Grab any old crystal, stuff it in there, forget the caps. 99%+ shot it will > work. True. The problem is what are you doing IF you are in the 1%, and the pcb is already finished... And believe me, in one day you will be there ! PIC16F630 with external crystal and small Q factor is: oscillating-not oscillating-oscillating-not oscillating etc... -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics