Homemade Phase Detector | Joule Thief Circuit | LED Voltage Tester
In this video, I'll show you how to build your own voltage tester using a slightly modified Joule thief circuit and a 1.5V battery.
If you liked the video, don't forget to LIKE and SUBSCRIBE!!!
I recommend checking out another voltage tester project with an LED. Cheers!
• BUSCAPOLO CASERO CON LED - SIN BATERIAS, P...
Materials
1 ferrite toroid, 10 mm diameter x 6 mm diameter x 4 mm wide.
2 2N2222A transistors.
1 LED.
1 1.2nF capacitor.
1 1.5V battery.
1 nail.
1 marker container.
Thin wire and tape.