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  1. R

    Electronics Q; 7805 running hot with no load?

    The capacitors could be pretty much any type, and anything from 47nF and up.
  2. R

    Electronics Q; 7805 running hot with no load?

    78xx regulators can tollerate a lot of misuse in circuits (bad design application) so when one plays up it can cause a lot of head scratching. While you can often get away with a lot, there are some guidelines to follow (and if you've ever had production runs of thousands you soon learn not to...
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