Difference between revisions of "Other DIY Testers"

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== Table of Contents ==
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== Simple circuit continuity tester ==
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You can build a simple circuit continuity tester with just a few parts. This would allow testing a cut or broken extension cord to discover which wire connects to the wide terminal at the plug end. (Of course, the cable would not be plugged into a wall socket at the time!!!). You could also use it to test the ends of a communication cable to discover which wire connects to which pin. If there's "continuity" (i.e. "a connection") then the LED would light. If not, the LED would remain dark.
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[[file:Simple_continuity_tester.jpg]]

Revision as of 08:36, 16 March 2015

Simple circuit continuity tester

You can build a simple circuit continuity tester with just a few parts. This would allow testing a cut or broken extension cord to discover which wire connects to the wide terminal at the plug end. (Of course, the cable would not be plugged into a wall socket at the time!!!). You could also use it to test the ends of a communication cable to discover which wire connects to which pin. If there's "continuity" (i.e. "a connection") then the LED would light. If not, the LED would remain dark.

Simple continuity tester.jpg