"All I saw on the Toroid Guy's order sheet was KAT2 .... not KAT100 Did I miss something?" Hank- At the moment everything is still in the prototype stage. By the time the KAT100 is ready for release, however, I'll have a grasp on the particulars needed to update my order form. Get ready for some hefty inductors <G>. Tnx, Mychael