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Old 06-16-2008, 07:27 PM   #305 (permalink)
RuHaSs
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While we are on the subject of how harsh this environment is for electronics may I suggest LM2940T-5.0 as a replacement voltage regulator with the proper filtering. I too also agree with opto's maybe 4n35 or at the very least a transistors on the input. 3 or 4 bucks extra will go a long way in possibly saving to replace Atmega etc, just my 3.26 cents

http://www.national.com/ds/LM/LM2940.pdf
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