>> You can also go to 2 oz copper, for greater current carrying ability. Or higher. I have some surplus PCB material that has 3oz copper on one side and 1oz on the other side (I should have read the label more carefully before buying - that's NOT what I wanted...) BillW -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu