Thanks for the suggestion to search for other discussions of this, hadn't occurred to me. I did some searches and everything I read suggests the clicking is harmless. Elecraft can supply a new "Z bracket" to correct the problem. It's even mentioned in the manual it turns out.
Am I missing something? dana On Mon, Sep 20, 2021 at 3:42 PM Andy Durbin <[email protected]> wrote: > "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] > ______________________________________________________________ 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]

