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Andy, I used my thermal gun and not sure if this helps:


The IRF520 nearest to VR12 reads hotter, about 135 degrees. The IRF520 to the right of it nearer to VR10 reads 100 degrees.


Q51 reads about 100 degrees

Q52 reads about 90 degrees


Readings done after a minute or 2 of continual transmit.


Adam