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Circuits designed by David Johnson, P.E.
Last Updated on: Monday, July 11, 2016 01:59 PM

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Watt Hour Circuits

  •  Watt-Hour Meter Monitor  -  Have you ever wondered how much power your house or apartment is using?  Most watt-hour meters are like the one shown below.  Some newer ones have a digital display but there millions of these older models still in use . . . [Hobby Circuit designed by David Johnson P.E.,  09/28/08]

More  Watt Hour Circuits
 

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Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


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The circuits on this site are designed by David A Johnson - unless otherwise noted.  David A. Johnson & Associates.  All Rights reserved. 
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