Ham radio etc. Make ideal heat sink for amplifier or linear project. Large fins on the bottom with a good flat surface incased around the back with removal cover.
Aluminium Heatsink with Casement / 480 X 460 X 180mm Ham / Amateur Radio Project
Aluminium Heatsink with Casement / 340 X 300 X 130mm Ham / Amateur Radio Project
Aluminium Heatsink with Casement / 380 X 370X 140 mm Ham / Amateur Radio Project
Aluminium Heatsink With Cooling Fins 10x7 cm
Heatsink cooling aluminium TO220 with silicon pad, screw and bushing
Aluminium Heatsink 40mm x 40mm x 20mm Cooling Fin with 3M Thermal Tape UK