"but after it warms up - 40 degrees C or so - I start to hear a faint clicking noise."
You should stop using it. There is clearly something seriously wrong. All KPA500 should make a loud, not faint, clicking noise as they heat and cool. (I suppose I shall have to explain that much has been written about KPA500 clicks and the attempts to fix this irritation. Try a search of the archives as discussion of this topic is likely to be cut off short.) 73, Andy, k3wyc ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
