From what I've read/seen of TECs, they are OK if efficiency is not a concern and in certain applications. However, in R/C, efficiency means a lot. We want max cooling AND max efficiency AND durability and and and and. We don't ask for a lot.
I still think a slightly larger heatsink that is properly placed to take advantage of the natural airflow inherent in a moving vehicle will work wonders without exotic cooling methods. Seems like any other solution has major disavantages that keep them from being a practical cooling solution.
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Originally Posted by GriffinRU
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Oooh, a new toy! Too bad I can't download it until tomorrow night (using my G/F's Palm Treo as a modem and is limited to a single 17MB download).