Homemade non contact voltage tester using BC547 | Simple AC detector | Inventor 104

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Homemade non contact voltage tester ( Wireless AC line detector using BC547, Simple AC detector ).
This is a wireless AC line detector circuit using a bc574. This is a very good simple AC detector for your testing.
Components used in this project:-
1. BC547 Transistors x2
2. 10k Ohm resistor x2
3. LED x1
4. 18650 Battery x1