Next time you are building a project and find a component running a bit hot you may want to look in your pocket for a few pennies to solve the problem. This Penny Heatsink idea is a nice idea since I can think of a number of times that I have bolted on expensive heatsinks when I only needed a bit of heat dissipation but a large heat sink is all I had on hand. The author suggests that it’s not really worth the effort and a good heatsink should be used but this is not always practical so I think it’s worth a try.
"In a recent thread on Head-Fi, someone asked how well a paperclip would work for heat-sinking a TO-220 part. Much speculation ensued (much of it from your humble author), including opinions that a penny might work better, and then the argument moved on to exactly how to use the penny and so on. I eventually decided that experimentation was called for, which lead to this article."
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