[time-nuts] FE5680 temperature question

[paul swed]

I added a heat sink to the FE5680.
Curious what temperatures have been measured after an hour warm up.
Before heat sink 120 F top and bottom.

With heat sink on the bottom quite a large one.
Top of case free air 105 F
Bottom 105 F
Internal, (screw out of the end and touching the internal heat sink)
111-113F.
Whats a good temperature to be shooting for?
Thanks

Regards
Paul
WB8TSL