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NYC
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...by learning what not to do.
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Hey does anyone know where I can get those nifty little heat sinks like the one included in the breadboard power supply from Arduino?

Thanks
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Manchester (England England)
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Almost any on line electronic components supplier has a vast number of heat sinks, like:-
http://uk.farnell.com/jsp/search/browse.jsp?N=1001235&Ns=PLS_005_INVENTORY|1&locale=en_UK&appliedparametrics=true&getResults=true&No=0&catalogId=&prevNValues=1001235&filtersHidden=false&appliedHidden=false&originalQueryURL=%2Fjsp%2Fsearch%2Fbrowse.jsp%3FN%3D1001235%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Den_UK%26catalogId%3D%26prevNValues%3D1001235
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Ontario
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A drill, a hacksaw and a bit of patience would likely yield a usable heat sink from an old hard drive frame.  I sometimes use bits of aluminium angle that I have lying around.  Not pretty, but serviceable, particularly for non-critical applications.
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