Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!ncar!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpcc05!col!dunphy From: dunphy@col.hp.com (Dan Dunphy) Newsgroups: sci.electronics Subject: Re: 12V car --> 3V cd player Message-ID: <16120022@col.hp.com> Date: 5 Jan 91 00:41:19 GMT References: <41842@ut-emx.uucp> Organization: HP Colorado Springs Division Lines: 2 You should use capacitors at least double the available voltage. I would use an output capacitor of at least 1 uF.