Hi everyone, Is there a easy way (with a multimeter) to find out if the AC transformer in an old piece of equipment is rated at 110V or 220V ?. If not I suppose I can try and run it on 110V and then decide ! Thanks for the information, I am restoring/rebuilding a few old radios and I would hate to damage them ! 73, Rudi de ZS6DX/V51VE