Re: [Elecraft] KPA3A Failure & related

2019-02-16 Thread Don Wilhelm
Bob and all, I think this problem is not so much with the amplifier, but the K3/K3S. Consider that the switchover from the low power amplifier to the KPA3 is in the 12 to 15 watt range. That is where the LPA is generating about all the power it can produce. Above that range, the KPA3 kicks in

Re: [Elecraft] KPA3A Failure & related

2019-02-16 Thread Bob McGraw K4TAX
This discussion has risen its nasty head earlier.  Wes and I exchanged several private e-mails on the topic.  Here is what I've learned: My purchased new from the factory my K3S -100 in August of 2015. With it I drove my AL-80B with 60 to 80 watts for some two years.   Absolute no issues of co