[Elecraft] K3 loss of power (KPA3 100W)

[kc8wh.mh]

My K3S lost both power out and receive when set to 13 watts or more. Everything worked fine at 12 watts or below.It turned out to be a bad solder joint.Good luckMike. KC8WHSent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: David Sumner <dave.sumner.k1zz at gmail.com> Date: 9/11/21  9:15 AM  (GMT-05:00) To: Lee <troutcm at gmail.com> Cc: Elecraft Reflector - post <elecraft at mailman.qth.net> Subject: Re: [Elecraft] K3 loss of power (KPA3 100W) Lee, it may not be that bad. Check Config to make sure KPA3 shows “PA nor” — there are other causes of your symptom as well that others may be able to comment on. 73, Dave K1ZZSent from my iPhone> On Sep 11, 2021, at 8:35 AM, Lee <troutcm at gmail.com> wrote:> > If I had to guess, I would say the finals are blown in my KPA3.> > If I advance the power knob, output is normal up to 12 watts.  As soon as> the power is advanced to 13 watts, the power drops to near 0, perhaps 1/4> watt.> > Any help on troubleshooting?> > Assuming the finals are blown, is it possible to just return the KPA3 to> Elecraft for repair, rather than the K3 itself?> > Thanks for any help!  Lee> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at 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 dave.sumner.k1zz at gmail.com ______________________________________________________________Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Elecraft at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to kc8wh.mh at gmail.com