It's been said before. Check your cables and connectors for arcing. It
won't happen with lower power but as the voltage goes up with higher power
it may arc across a bad cable or connector. Possibly even in a tuner.
Can you test with different cables or a dummy load?
73,
Mark
On Sun, Dec 30,
Sent from my I-Phone
Begin forwarded message:
> GE, folks
> My KPA1500 (s/n 121) has developed a problem:
> When applying power (15-20W) from the K3 to the amp, it immediately faults
> to:low gain fault ratio 3 (sometimes ratio 2 to ratio 6). The SWR indicator
> shows high SWR as the amp
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