There’re a couple things in series with the transformer primaries that look like thermistors. Wonder about them. They’re labeled T and SL 1, and SL 2.
Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 5, 2020, at 12:08 PM, Nr4c <[email protected]> wrote: > > Fuses! > > 400 Watts “for quite a long time”? Bet the fans were happy. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 5, 2020, at 12:07 PM, Tom Berry <[email protected]> wrote: >> >> I was operating on FT8 20 meters for quite a long time with my KPA500 >> running about 400 watts and heard a few pops (like something arching). >> Heard it a few more times then the amp went off. >> >> Now it will not power on. No lights, nothing. I checked the fuse and it is >> OK. >> >> Can you tell me where to start looking? >> >> >> Thanks >> >> Tom AAA4VV >> >> ______________________________________________________________ >> 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] ______________________________________________________________ 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]
