I have a K2 serial no. 4729 with the 100W amp which I have been using for almost 10 years.
It recently developed a problem with the following 2 symptoms: 1. After operating for some time (perhaps 1-2 hours) the Tune function will begin to display 1 W with a 1.0-1 SWR on all bands. It normally displays 22-23W with the correct SWR shown. 2. At the same time, if I attempt to transmit, the K2 will apparently begin to draw too much current and it shuts down and re-starts. The Tune function also shuts the K2 down at this point. I observed the same behavior on a dummy load - to eliminate an antenna or feedline issue. I also left the power supply on while letting the K2 cool down to see if it was the source of the problem. Apparently not since the K2 would operate for a significant time after turning it back on. I have not tried any other troubleshooting. I thought I would see if anyone could point me in the right direction before I took the shotgun approach. TNX for any help & 73, Jim WA4YWM -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-w-100W-amp-has-temperature-related-xmit-shutdown-tp7604669.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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]
