Home Made Continuity Tester

by BOY MECHANIC in Circuits > Tools

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Home Made Continuity Tester

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Hi there if you want to build a continuity tester to check potentially broken cables, you've come to the right place.

Supplies

- 1 Led/Buzzer.

- 1 1.5 volt battery(AA / AAA).

- Some cables.

Building the Tester.

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Connect up the led, and battery as shown in this circuit diagram.

If the Led/Buzzer does not work when you touch the two tabs together, the you should turn the Led around.