I believe I have fried the 80 meter circuitry in my KPA-500. I am
contacting Elecraft about possible repairs, but would also be interested
in other's input. Here is what happened:
I was using a multi-band antenna and the SWR was high on 80m. I use a
KAT-500 with the Amp at all times. My (naive) thinking was that if the
KAT-500 could successfully tune it, the Amp was safe. In the past, this
seemed to have been the case. I use an IC-7600 and have the KEY line
connected, as well as the PA KEY line between the Tuner and the Amp.
Every time I changed frequencies on the 80 meter Band, I would TUNE
before operating. At one point, I noticed "that smell" of hot
components, and was then unable to transmit on 80 meters.
In testing this morning, I get no output from the Amp on 80 meters only.
All other Bands seem to be fine. I can use 80 meters with the Amp in
Bypass mode, so I do not suspect a problem with the Tuner. Today, it
continues to work fine on several other bands with full power output.
Thanks for any suggestions
73,
Tom, KG3V
--
Get on the Air and make some noise
Ham Blog at WWW.KG3V.COM
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