Simplest Wire Tracer/Coax Tester

This is a simple wire tester all you need is a 12-1000vac non-contact voltage detector. The ideal is to connect AC live wire to the red circle is. You do not use ground or neutral wires, these wires should be cut off. If the cord is shielded(coax) the detector doesn’t. Even though there’s only one wire used you should not touch the wire. The 5v is actually the ac mains voltage. The three switches choose 1 out of 8 outputs to connect the ac live wire to.

Whats needed

  • 1x spdt switch
  • 1x dpdt switch
  • 1x 4pdt switch
  • 1x RJ45 Jack
  • 1x Polarized ac power cord
  • a project box that is big enough to fit everything
  • MultiMeter
  • screwdriver
  • drill
  1. drill holes in the box for wires and switches
  2. connect all switches as shown in the picture at the top. NOTE THAT THE LAST SWITCH OUTPUTS GO TO THE RJ45 JACK
  3. Next set your multimeter to lowest resistance range and check for continuity between live wire pin and rj45 connector. this will help find the correct pinout on the switches

Published by Justin Roeder

I am an electronics engineer and computer programmer that has autism. I learned by myself

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