This post show how to make a Alternate Red Green LED Flasher Circuit using red and green LED, it is fun and easy circuit, that is a reason so many people like this project. Also, this circuit uses two BC547 transistor and they help red and green LED blink one by one. What is a […]
Transistor Circuits
Simple Single Transistor LED Flasher Circuit
To begin with, this Simple Single Transistor LED Flasher Circuit show smallest LED flasher circuit ever made, here the LED blink ON and OFF again and again by using only one transistor, one resistor and one capacitor. Now, just think of only one transistor and some easy parts and LED will start flashing, look nice! […]
Inverter Circuit using Two 2N3055 Transistors
In this post we show how to make an easy and simple Inverter Circuit using Two 2N3055 Transistors, which works with 12V battery and gives around 100 watt 220V AC power. Also this circuit is good for using with small home devices. Circuit Working: Parts List: Components Values Quantity Resistors 100Ω 10W Wire Wound 2 […]
Small Amplifier Circuit using Transistors
This is one Small Amplifier Circuit using Transistors which work like basic audio amplifier and it makes weak sound signal more strong so sound come better like in car radios. So, now lets see how this circuit is build and how it work. Circuit Working: Parts List: Components Values Quantity Resistors 100k, 1k 1/4W CFR […]
220V SMPS Circuit using One Transistor
To begin with, this article shows how to make 220V SMPS circuit using one transistor, as the circuit connects to 220V wall socket and it uses only one transistor MJE13005. Also, it does not need a special IC or many extra parts, instead, it uses a special diode and a transformer coil, so it controls […]
Electronic Organ Circuit using Transistors
This post talk about how to make small and easy Electronic Organ Circuit using Transistors. First, it make sound like real organ, so sound is nice and fun, then we have used transistor and transistor help make sound and give power to speaker. Also, this circuit is small, but it plays good music and is […]





