On Monday, September 10, 2012, Curt KB5JO wrote: <I built K2 s/n 06424 with KSB2 awhile ago, and am considering adding a <KPA100. Wonder whether this will just foul up a good radio. I recall <reading about oscillation and other problems with the 100W addition to the <K2.
The early KPA100 did have this problem, but it was ironed out years ago. An upgrade kit was/is offered for those early KPA100's and the design changes were incorporated in the rest of them. <Appreciate knowing whether the issues have been ironed out and any advice <about making this change. In particular, I have talked on air with a friend <who owns a K2/100 and his SSB signal on 40M is always weaker than any other <rig he uses. I have one of the early KPA100's, did the upgrade and have never had any issues with it since. No problems with output on any band phone or cw. <Bottom line, is adding a 100W amp to what was originally a great QRP rig <just asking for trouble? Absolutely not. Been a happy K2/100 owner for 11 years. 73, George, NC5G -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-KPA100-Question-tp7562394p7562402.html Sent from the Elecraft mailing list archive at Nabble.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

