Learn electronics using tutorials

Learn electronics using tutorials for beginners. Learn how to design electronic circuits and how to use electronic parts .

Bipolar transistor

The first transistor was invented at Bell Laboratories in 1947 by Nobel-Prize physicists John Bardeen, William Shockley, and Walter Wratain.

Circuit Diagram: 
Bipolar transistor
Bipolar transistor symbol

Transformer

The transformer is an electrical device that, by electromagnetic induction, transforms electric energy from one or more circuits to one or more other circuits at the same frequency, but usually at a d

Semiconductors

Resistors, capacitors and inductors are known as passive components .