I guess I should have been a little more explicit in my trouble shooting. The problem of power dropping to zero was on all bands which seemed to eliminate the filter board. The problem had happened once a year or so ago when I posted a question relating to "Lo Po" display (I have the KAT2) but then seemed to go away. Hmmm.
The DC voltages checked out fine. Using the rf probe, I found rf (with values a whole lot higher than those listed in the manual) up to the base of Q6 using the TUNE function and/or a straight key for key down. There was at times some output on the collector of Q6 but would quickly drop to zero. That's why I posted my question late at night (my eyes and brain were turning to mush) about the failure rate of Q6. The next day I reheated the solder joints for all components around Q6 and output returned. R50 value measures okay. A closer visual on the toroids indicates I may have to remove them and retreat the leads. Thanks to Don and Gary for their suggestions. I think I'm on the right track to fix this intermittant. If I get it solved by Dayton, I just might purchase another option for my K2 (thinking about the transverter option) while "she" is on the operating table. 73, Clark KE4RQ K2 # -- View this message in context: http://n2.nabble.com/K2-Flakey-PA-Output-tp4725896p4736619.html Sent from the [K2] 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html