Amateur astronomers use Peltier devices to cool the CCD on their
astrocameras. The Peltier unit cools and circulating water/alcohol removes
the heat. Without cutting a fin, aquarium tubing could be woven through the
fins circulating cool liquid via a small pump system. These systems are
small and are DIY. Then there is always liquid nitrogen. <g>
73 Gil NN4CW
K2#3104
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