[Elecraft] Sudden KpA1500 power reduction

[Dana Roode K6NR]

I'm in the ARRL CW contest this weekend and the KPA1500 has been working
fine.  However, a few minutes ago I noticed I was getting about half the
output power on 20 meters that I typically get with around 30 watts drive
(about 600w vs 1200w).  PA current is less than normal, around 30a.
Similar problem on the higher bands, I can no longer get 1000w.  On 40m I
can, but it requires more drive.

Seems like something died in the amp; I'm not familiar with the design, but
perhaps an output module.  No errors or ill behavior from the amp other
than the loss of power.

I will contact Elecraft support unless there is something I'm missing
here.  I just looked in the archive and see that this has happened to
others....  I use the amp remotely so I guess I'll have to take it home
with me.

  Dana