Original poster: "bob golding by way of Terry Fritz <twftesla-at-uswest-dot-net>" <yubba-at-clara-dot-net> Hi All, I haven't had any luck finding the full spec on IN5408 diodes. Does anyone know of a good diode spec web site. I need to know in order to work out the limiting resistor value for my DC supply for my big coil. cheers bob golding