Path: utzoo!attcan!uunet!ginosko!gem.mps.ohio-state.edu!wuarchive!udel!burdvax!bam From: bam@PRC.Unisys.COM (Brian A. McCreadie) Newsgroups: sci.electronics Subject: Re: Lightning protection Summary: give an example Message-ID: <11612@burdvax.PRC.Unisys.COM> Date: 29 Sep 89 18:50:43 GMT References: <11561@burdvax.PRC.Unisys.COM> <7600025@hp-lsd.COS.HP.COM> Sender: news@PRC.Unisys.COM Lines: 32 In article <7600025@hp-lsd.COS.HP.COM>, dag@hp-lsd.COS.HP.COM (David Geiser) writes: > I would guess you're talking about using a cap to filter HF noise > on the power line to ground? > Use small caps. Ten in parallel are more effective than > one ten times as big. Could you describe how that works? I am not sure that I understand. Do you mean: - pre-amp - | | | | | | | | | -----|(-------- | | | | -----|(-------- | | | | -----|(-------- | | | | -----|(-------- | | | | -----|(-------- | | | | -----|(-------- | | | | | | | | | Neutral Hot Ground