What heatsink is supplied?
One heatsink 300mm (12 ) x 75mm (3 ) is supplied and copes easily with the heat from both 55W AKSA channels. Two of these same heatsinks are supplied for the 100W AKSA. The heatsink is a Conrad Engineering MF30-75-1F, of dimension 300mm long x 75mm high, with a 50mm wide x 6mm thick cast flange for mounting the output semiconductors, and 31 fins of 40mm length spaced at 10mm. You can find this company here: Conrad. This heatsink is rated at 0.37 Celsius per watt in still air and is manufactured locally by pressure casting from premium aluminium alloy in Melbourne, Australia. This technique is so good that Conrad Engineering is able to form flawless 1mm thick fins in routine, daily production. In normal operation, the heatsink temperature is of the order of 10~15 Celsius above ambient; there is more than adequate cooling reserve (Australia is a hot country; we regularly experience temperatures in Melbourne during summer of over 40 Celsius [104F].) The AKSA has been set up to cope with t
