I had that happen to one of those resistors and the 40 meter coil in the BPF circuit was basically vaporized. They sent me out the parts to upgrade the resistors and a new toroid coil all for a very reasonable price. I replaced the parts and was back in business. They refer to that behavior of the surface mount resistors as "tombstoning" they over heat and one end comes loose first and the other end pulls it up in the air. Kind of cute.
On Thu, Jun 16, 2022, 12:03 NE9U - Scott Jasper <[email protected]> wrote: > i sent a message to list a while back about my k3 not putting out any > power over 12 watts.....its still not...I'm on the LONG LONG queue for > sending in....(seems they need more repair techs) > > we took most of the boards out, reseated them etc.....no change. > > i did notice one thing that appears weird and must have been done by > elecraft repair on a previous trip for k3s board and other updates.. > > R4 and R5 on kpa3 board are unsoldered on one end and flipped > around....effectively taking them out of circuit. > > does anyone know the purpose of this being done? > > Scott NE9U > > > > > -- > Scott- NE9U > > Sent from my Cray-1 > > [email protected] > [email protected] > [email protected] > > > -- > This email has been checked for viruses by AVG. > https://www.avg.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] > ______________________________________________________________ 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]
