Received from Doc Dowd, W1DOC at 11/17/2021 14:55 UTC:
Maybe "up your heat sink" game:
Use a copper, rather than an aluminum heat sink. It transfers heat more efficiently.
Fins are only effective if you are using a cooling fan to move the air around.
Use thermal paste instead of a stick on pad.
Copper has about 40% better heat conduction, but the heat sink to air conduction is about the same so with the small size and large surface copper vs aluminum won't make much difference. Also, it can be really hard to find copper heat sinks.
73 de Jim, KB3PU
