Does anyone have for sale, or know of a source for the little gold clips that screw down to the chassis and hold a 4-1000A chimney and tube in place? [they also ground the tube collar - 4 used per tube] I need 20 pcs. Hopefully they are cheap somewhere without resorting to Eimac. Or even close substitutes will do. Tnx and 73, Tom, K1JJ