[Elecraft] Extra Protection For KPA500?

[Tony]

All:

Thanks for the advice regarding protection for the KPA500. I use more 
than one rig with my KPA500 so one has to pay attention to the drive 
levels. I suspect the protection circuit could fail if you accidentally 
pump 100 watts into the amp now and then.

Regarding the K3S power-per-band setting: it looks like it requires the 
LOCK function to keep the power level one chooses. Is that the way it 
works or is there another option besides LOCK?

Tony