In this post I am going to explain different types of electrical transformers that are used in a wide variety of applications. Transformers can be classified in many different ways, for example: based on their input / output character, voltage, frequency, application, power handling capacity etc. In this post we will be exploring all the […]
Electronics Theory
Solving Darlington Transistor Formulas and Calculations
Now in this post you will learn about this amazing BJT device which is called Darlington Transistor. It got this name after genius engineer Sidney Darlington who first gave this idea, so we remember him. What Is Inside Darlington Transistor Basically this device is like special combo of two normal NPN or PNP bipolar junction […]
FET Current Source: Explained with Formulas
An FET Current Source is one special type of active circuit that is using a Field Effect Transistor for giving a steady and constant current into a circuit. We are doing this because sometimes we want that current should not change, it should remain fixed and stable. Why We Need Constant Current Now you may […]
How to Make Logic Gates using Transistors
In this post I have explained how to build NOT, AND, NAND, OR, and NOR logic gates using discrete transistors. The main advantage of using transistor logic gates is that they can work even with voltages as low as 1.5 V. In some electronic applications the available voltage may be inadequate to power TTL or […]
Point Contact Diodes [History, Construction, Application Circuit]
In this article I will comprehensively explain about the early point contact diodes, and their modern versions which are Germanium diodes. Here I have explained the following facts: Brief history of point contact diodes Construction of point contact diodes and modern Germanium diodes Advantages of point contact diodes or Germanium diodes Applications of Germanium Diodes […]
DPDT Relay Working, Pinouts, Testing Explained
In this post we are going to understand about how this DPDT relay actually works, how we identify its pinouts, and how we can use it in our projects. We shall go step by step so that you can feel confident with every small thing about it. Introduction We know that a DPDT relay means […]





