When I built K3 serial #3505 in September of 2009, the kit had thermal pads for the LPA transistors.
Mark, WB9CIF -----Original Message----- From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On Behalf Of hawley, charles j jr Sent: Wednesday, March 28, 2018 11:34 PM To: Brian Hunt <huntin...@coastside.net> Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 powers off when after several minutes of 12W carrier So there was a time early on for the K3 when the pads were not installed? I looked at my 2010 assembly instructions and they required them. So I must have put them in. Chuck Jack KE9UW Sent from my iPhone, cjack > On Mar 28, 2018, at 6:24 PM, Brian Hunt <huntin...@coastside.net> wrote: > > For folks who run lots of high duty cycle modes, Elecraft is now recommending 'thermal pads' between the LPA transistors and the bottom cover. I found this out when I was doing some mods to my 10yo K3 and the instructions said to install them and I didn't have 'em. You can get them from Elecraft, not expensive. > > 73, > Brian, K0DTJ > ______________________________________________________________ > 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 > c-haw...@illinois.edu ______________________________________________________________ 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 markmus...@sbcglobal.net ______________________________________________________________ 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
