K2 does output power drop with heat?

Posted by dw-4 on Mar 18, 2009; 1:29am
URL: http://elecraft.85.s1.nabble.com/K2-does-output-power-drop-with-heat-tp2494899.html

Hi,
I'm looking at the KPA100 schematic.
I see Q3 (NPN MJE182) feeding U7B op-amp, and a reference to .6 to .9
vdc.
It looks like Q3 is being used to sense temperature.
I'm guessing its mounted on the heat-sink.
U7B looks like a current regulation config based on the IR drop on Q3.
Does this mean the amp automatically drops output power if the heat-sink
starts to warm up?

Thanks
Duane
N1BBR
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