< I don't have a variac or anything and don't have the time or money to ge < one, but I need to bring up an IMSAI power supply that probably hasn't < been powered in over a decade perhaps. What can I do to warm up the cap < and transformer before bringing it fully online? Anything? Try a 100W light bulb in SERIES. It will limit the inrush current and if there is a short it will absorb the load. Allison