Simple AC line tester circuit diagram, Top 2 homemade AC detectors.

Wireless AC line detector circuit using a BC574 and cd4017 ic. This is a very good simple AC detector for your testing and projects. Top 2 simple noncontact voltage tester circuits.

Components used in this project:–

1. BC547 Transistors x3
2. 3V Active Buzzer
3. 330 Ohm resistor x2
4. CD4017 IC
5. LEDs


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