This Simple Voltage Regulator Circuit using Transistor and Zener work like bodyguard for electricity. It uses one transistor like door keeper and one special Zener diode to keep voltage not going up-down. Zener diode gives fixed voltage and transistor follow that voltage to keep same for our device. This project is good when voltage goes […]
Transistor Circuits
Simple Single Transistor LED Flasher Circuit
This Simple Single Transistor LED Flasher Circuit show smallest LED flasher circuit ever made. LED blink ON and OFF again and again by using only one transistor, one resistor and one capacitor. Just think of only one transistor and some easy parts and LED will start flashing, look nice! This is type of circuit one […]
Inverter Circuit using Two 2N3055 Transistors
In this post we show how to make an easy and Inverter Circuit using Two 2N3055 Transistors. It works with 12V battery and gives around 100 watt 220V AC power. It is good for using with small home devices. Circuit Working: Parts List: Category Component Quantity Resistors 100Ω 10W Wire Wound 2 15Ω 10W Wire […]
Small Amplifier Circuit using Transistors
This is one Small Amplifier Circuit using Transistors which work like basic audio amplifier. It makes weak sound signal more strong so sound come better like in car radios. Now lets see how this circuit is build and how it work. Circuit Working: Parts List: Category Component Quantity Resistors 100k 1/4W CFR 1 1k 1/4W […]
220V SMPS Circuit using One Transistor
This article teaches how to make 220V SMPS Circuit using One Transistor, it connect to wall socket of 220V and only uses one transistor called MJE13005. No need for special chip or many extra parts to the control power. It uses one special diode and wire coil on transformer to control voltage in different way. […]