XPost: alt.binaries.chatter   
   From: jamie_ka1lpa@charter.net   
      
   In article , no@spam.com says...   
   > >>   
   > >>> Sometimes there are obvious signs, bulged top or any evidence of   
   > >>> overheating.   
   > >>>   
   > >>> But the capacitor can look shiny and new, yet fail the test.   
   > >>>   
   > >>> Presumably that's why ESR meters aren't cheap.   
   > >>   
   > >> I mean can you tell a low ESR capacitor by looking at it, is the ESR   
   > >> rating on it?   
   > >   
   > > I've never seen it on the component markings - you have to look it up in   
   the   
   > > manufacturers catalogue.   
   >   
   > Why are some electrolytic caps gold coloured?  Does that mean they're better   
   quality?   
   >   
   > --   
   > I married my wife for her looks...but not the ones she's been giving me   
   lately!   
   >   
   >   
      
    The problem is not just ESR, you also have induction issues in lytics.   
      
    Best practice is to use 105 degree caps and put a disc or cermanic type   
   cap across the lytic together.   
      
    The ceramic has very low L in it so it can grab the sharp edge of the   
   pulse.   
      
   Jamie   
      
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