transistor

What is NPN Transistor: Working of Transistors as a Switch and Amlifier NPN Transistors

The first bipolar junction transistor was invented in 1947 at Bell laboratories. “Two polarities” is abbreviated as bipolar,…

Transistor as an Amplifier Transistor as an Amplifier Circuit

Transistors are the semiconductor devices used for switching or amplifying electrical signals. They are highly…

Transistor Switching Circuit Transistor Switching Circuit: Examples of How Transistor Acts as a Switch

Transistors are made up of semiconductor material which is most commonly used for amplification or switching purpose, although…

Simple Audio Amplifier Circuit using IC 555 Simple Audio Amplifier using 555 Timer IC

555 time IC is very powerful and versatile IC, it can be used in many forms. In this tutorial we are going to see how a 555 IC…

Simple Water Level Indicator Alarm Project Simple Water Level Indicator Alarm with Buzzer

Water tank overflow is a common problem which leads to the wastage of water. Though there are many solutions like ball valves…

Transistor Tester using 555 Timer IC Transistor Tester using 555 Timer IC

In electronics most commonly failed component is transistor. To test the working of the transistor, one must go through a lot…