I hadn't used my KPA500 for awhile, but I put it on the air recently. It's working fine with my K3, but after it warms up - 40 degrees C or so - I start to hear a faint clicking noise. It is coming from the vicinity of the fan and heat sinks. There is a click every 10 seconds or so, I think whether I am transmitting or not. Fan control is working fine, and I bumped up the lowest speed to help keep the amp cooler.
Let me know if anyone has seen this before. Meanwhile, I will keep using it and see how it goes. Dana, K6NR ______________________________________________________________ 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]

