Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!ncar!gatech!purdue!mentor.cc.purdue.edu!PURCCVM.BITNET!XWUU From: XWUU@PURCCVM.BITNET Newsgroups: sci.electronics Subject: lightning protection question Message-ID: <91093.214905XWUU@PURCCVM.BITNET> Date: 4 Apr 91 02:49:05 GMT Sender: news@mentor.cc.purdue.edu Organization: Purdue University Lines: 14 I recently read in a reputable computer repair manual that one can gain some measure of lightning protection for an electronic device (computer, TV, etc.) if a simple overhand knot were tied loosely in the power cord. The author says he got the idea from electronic specialists and that he uses this technique on all of his equipment since the last time lightning struck near his home. It seems that his TV was the only electronic device damaged by the lightning and it was the only devive without the knot in the cord. Even his sensitive computer and test equipment were not harmed. The theory is that the lightning somehow has to "work against itself" due to the overlapping coil of the knot. Sounds like voo-doo to me. What does any one else think. Any validity to this theory? XWUU@PURCCVM