Here's one for the gang, I have a KWM-2A that has just a second of feedback when you un-key the mic, I have checked all tubes and looked it over for loose solder joints & checked and cleaned the relay contacts ETC. any ideas??? Thanks & 73's Dutch Please visit my Collins web-site http://users2.ev1.net/~wb7dyw/ And my new R-390 Page. http://www.qsl.net/wb7dyw