This Enginursday tests a 7805 regulator with various heat sinks.
It's Enginursday again!
Today I'd like to show that it's not hard to collect thermal data, and that temperatures can vary wildly depending on how the heat can (or can't) escape. I apply several types of heat-sinking materials to a TO-220 7805 and see how it responds. If you've never taken the temperature of a component before, this will be a good introduction.
Keep on testing,