All,
My KPA500 amp, (#2208 kit built), was acquired used but well cared for. It
has operated perfectly for several years until today. I was in QSO on 40M
when the amp threw a fault and the signal strength of received signals
dropped markedly. When I put the amp in standby, the signal strength of the
received signals returned to expected levels. I do get a TX power indication
appropriate to the drive level on keying up. This issue does not clear when
the power is cycled.
I have done a cursory RTFM and find there is not a circuit diagram in the
manual nor a description of how to interpret the fault (beyond the plain
text listings). I have not yet had the time to dig into the archives at
Elecraft or look through the files on the website.
If this "symptom set" sounds familiar and/or you can point me to where and
how I could troubleshoot, I will be quite thankful.
Best regards,
KD4IZ
Jack Spitznagel
FM19oo
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