Kevin der Kinderen <kkinde...@gmail.com> wrote: > I'm a bit surprised that's the conclusion as simply bypassing or turning > off the amp but leaving it connected made the problem go away. I have some > good cable on there now but can replace each one of them to try it out. > I'll report back later on. I really hope it is just this. > I had a similar problem recemntly due to a SC diode in the TR switch, all OK on bypass but not on operate. After changing diode (and checking associated bits I has problems with power/dissipation on 10 and 6m cured by using a diode from a different batch.
However, after re-assembly I had intermittent lack of RX, traced to a relay card used externally for buffering a relay. At the time this board was unpowered but still in circuit and was holding the KPA500 on TX. A simple bypass proved it was the culprit and putting its 12v power back on fixed it for good. -- Brian D G3VGZ Yarm England ______________________________________________________________ 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