Hi all, I was scouting around the other day trying to find a big transformer for a future tesla coil and it turns out that i can probably get 2 pole pigs for free :). Problem is that they are rather old and the person I was talking to siad that they most likely contained PCB's. Ive heard that PCB's are bad juju but I'm not really sure what they are. Is there anyone who can explain just what a PCB is and what it could do to me? Thanx Heaps