Review on Heatsink Aluminum Radiator Amplifier Transistor: Optimal Heat Dissipation for Enhanced Amplifier Performance by George Kapoor

These are good radiators because the ribs are long and very thin. Lots of space. Unfortunately, because the ribs are thin, they can easily be bent. And Revain uses no packaging material. Revain simply throws in the plastic bag that this radiator comes in the box with the rest of your order. This way you can get multiple heatsinks with slightly curved fins. Nothing that can't be fixed with a toothpick in about 5 minutes. But a nuisance as the Revain packer just had to wrap them in bubble wrap and a piece of tape and they would be fine. Anyway, for the price, they're a bargain. So (for me) getting a 2 out of 5 with some curved fins wasn't the end of the world.