How to make Continuity, circuit tester

Описание: Hello friends in this video i will show you how to make continuity, circuit tester very easy and fast at home. This is very useful to test wires and to detect which wire is defective or break. Also you can test all electronic components so you can easily find out which item is defective. I make this circuit tester with two clamps so easily with out help from others people you can test wires. Also i add with diode and buzzer. You can make also with buzzer only or with diode. But i want to have both signals sound and light. I also provide the schematic diagram and it is easy to understand.

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Materials that you need :

1 Buzzer 6-28 volts
2. Diode 3 v
3. Resistor 470 Ohms
4. Switch
5. Two wires about 30 cm to 100 cm for clamps (it is your choice)
6. Two clamps
7. Battery 9 volts
8. Battery connector
9. Plastic box for assembly components

Tools that you need:

1. Pliers
2. Soldering iron
3. Glue
4. Sticking tape


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