Article View: sci.electronics
Article #15202How does this AC test probe work?
From: Rich Winkel
Date: Sat, 21 Nov 1992 06:54
Date: Sat, 21 Nov 1992 06:54
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923 bytes
I just bought this a few weeks ago. The outside is all plastic. It's the size and shape of a large ballpoint pen, except the tip is closed and flattened. It's powered by 2 AAA cells. When it gets within about 1/8" of a hot house-current wire (not the neutral), an led lights in the tip. It doesn't matter if current is actually flowing in the wire, and it doesn't matter if I'm near enough to capacitatively interact with the probe. How does it work?? Rich
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arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!ukma!mont!pencil!richShow Full Headers
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!ukma!mont!pencil!rich From: rich@pencil.cs.missouri.edu (Rich Winkel) Subject: How does this AC test probe work? Message-ID: <rich.722328879@pencil> Sender: news@mont.cs.missouri.edu Nntp-Posting-Host: pencil.cs.missouri.edu Organization: University of Missouri Date: 21 Nov 92 06:54:39 GMT Lines: 11