Looking around here for a heat-sink for a TO-18 (2n2222) form I don't quite see one around that will serve. The thought in my mind is whether I may cut the top off the Coke Can, and use it as a sink; punch a hole the size of the TO-18, cut tabs along the perimeter of the cap, and stick the transistor in it.
Will the aluminum from a coke/beer can serve as a heat sink?
Best Answer
As long as you can get good thermal and mechanical contact I don't see why it can't work. I think this version used a bit of heat shrink to hold it nice and tight.