Small switch we call transistor is inside almost all electronic thing, but transistor cannot handle big power by itself. So we have used Simple Transistor Relay Driver Circuit which is like a special adapter for transistor and this help small signal from transistor to control big relay switch. Also, with this we can turn ON […]
Mini Projects
Simple Temperature Indicator Circuit using a Single Transistor
To make a Simple Temperature Indicator Circuit using a Single Transistor is not so hard like people think. Furthermore, this article makes understand, how anyone can build this easy circuit using one diode, one transistor and some other small parts. What is a Temperature Indicator Circuit using a Single Transistor: Firstly, using one transistor, temperature […]
Simple Current Limiter Circuit using Transistors
To begin with, this Simple Current Limiter Circuit using Transistors gives tutorial to show how to make a circuit that stop giving too much power to other electronics. Also, it helps to protect from overload by using two transistors and one special resistor. What is a Current Limiter Circuit using Transistors: A transistor current limiter […]
Simple Voltage Regulator Circuit using Transistor and Zener
This Simple Voltage Regulator Circuit using Transistor and Zener work like bodyguard for electricity, because it uses one transistor like door keeper and one special Zener diode to keep voltage not going up-down. Furthermore, the Zener diode gives fixed voltage and transistor follow that voltage to keep same for our device. Also, this project is […]
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! […]
Simple LED Flashlight Circuit (Torch Circuit)
This Simple LED Flashlight Circuit (Torch Circuit) is an easy circuit for beginner, it uses white LED, small battery and one push button. Further, when we press the push button, the LED produces bright light. The circuit also, uses only 3 volt and small current of about 20 mA to give light at night, hence […]





