Heat Sink Exploration for the Electronic Load

Doing some thermal test on a heat sink out of an old Power Mac. Trying to get an approximate thermal resistance value of the heat sink. Evaluating if it can be used for a MOSFET dissipating 300 watts.

Link to Part 1: https://rumble.com/vjra3n-building-a-dc-electronic-load-the-investigation-begins.html

Link to Part 3: https://rumble.com/vkc9gz-sharing-the-power-in-an-electric-sort-of-way.html