alan smith wrote: > Remember...when you drop in mulitple via's, if you just put them in a > straight line, the first is going to take the bulk of the current, the > others whatever can be delivered. How do you calculate how much current each via carries? Aren't they just resistors (I'm talking about DC here, disregarding inductive effects)? Considering such a configuration (trace on top, trace on bottom, 4 vias in a straight line): +----+----+----+----... | | | | ...----+----+----+----+ Why would any of the vias get more current than any other? If it is in fact the first, which one is the first -- the left or the right? Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist