My kit-built KPA-500 is about 8 months old. Lately I’ve been running a lot of FT8 and FT4 at around 150 to 200 watts. I have really noticed a lot of loud creaking from the KPA-500 after a few QSOs on digital modes. The manual does indicate that some noise is normal but this does seem excessive, I don’t recall noticing it when on CW or SSB, although I haven’t done much contesting where the amp would have a lot of running time.
I expect I may need to tighten some screws inside. I really don’t want to do any more disassembly than necessary and would prefer not to ship back to Elecraft either. What is the likely culprit and how much disassembly is required to get to the necessary screws? Thanks, Phil N3ZP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
