I don't have this problem with my KX1, but if I ever develop it, I suspect that the first thing I'll try is a nylon or fiber washer under the thumbscrew. This is a reasonable attempt at a non-marking lockwasher... and the next thing is to try an extra thin flat washer (made from shim stock) plus a conventional lockwasher. The flat washer will protect the aluminum.
73 de chris K6DBG _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com