There are many types of transistors in the market, most of the time by reading the first number or alphabet printed on the transistor we can know as which type the transistor belong to.  ... Read more »

Transistor is an active device and it is use to perform rectification, switching and rectification. The name "transistor” is derived from "trans resistor” which means it changes resistance.  ... Read more »

A bleeder resistor is a resistor that connected across the outputs of the power supply. Some designs use bleeder resistors and some designs have no bleeder resistors in it.   ... Read more »