Spehro Pefhany wrote: >> ... C = I/(V*120) = 0.1/120 = 830 uF > > > Yes, of course, it's 1/10, but I qualified it ("may") because the > assumptions were just picked out of the air, and 1000uF is more available > than the next closest standard value (820uF). Another gotcha is the > ripple- > current rating, which may force a larger capacitor than would > otherwise be > required. Oops, sorry, I wasn't criticizing you here, I was showing the calculation supported recomendation, and to show that the result went the right way! Natch 1000uF is the way to go. David -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics