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Hi to All,
I'm a big believer in cool electronics run more reliablely and frequently use add-on small fans.
I rember reading in a tech book 30 yers ago about component technology, sorry, can't remember which one (French book) that everytime a component's temperature ran 10°C higher, long term reliability was halved - statistics over thousands of hours of operation & study of failure causes.
It profoundly affected me, and to this day anything i build/modify/service follows those guidelines.
Simple everyday experience: open any item using fixed 3 pin +5, +12 VDC regulators and check their temperature. Many are shockingly hand-burning hot and run with no heatsinks nor fan. In my book, very shoddy designing indeed.
When possible, i try to re-locate these regulators to use a metal chassis heat sink with Mica/Ceramic electrical insulation.
Opening a can of worms here - just my 2 cents...
Best Regards
jhalphen
Paris/France
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