Joule Thief With 2n2222a (detailed Tutorial)

Hello friends, today we will make joule thief with only four components

• 1k Resistor
• LED
• 2N2222 Transistor
• 10 turns wound ferrite toroid

We connect the (+) pole of the led to the collector pin of the transistor, and the (-) pole of the led to the emitter pin.

We connect our resistor to the base of the transistor.

We connect a single wire of the coil to the collector leg of the transistor. Then we connect the other single leg of the coil to the other leg of the resistor.

We connect the (-) side of our power supply [1,5v] to the emitter pin of the transistor, and the (+) side of the power supply to the junction of the two coils.