Transistor Basic Circuit

How to Know if a Transistor Defective

Transistor is an active electronic part. An active electronic part is something can perform amplifications or signal processing. Transistors are basic elements on power amplifiers, audio amplifiers, switching converters, power supplies and so on. A transistor term is somewhat generic. It could be a BJT, MOSFET of JFET. But for common people (electronic hobbyist), it is commonly referring to a

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How to Know if a Relay Defective

Relay is an electromechanical part though nowadays there is already a so-called solid-state relay. An electromechanical means a combination of electrical and mechanical actions or functions. For hobbyist, it is important how to know if a relay defective. But before going to that, let us discuss the basics of a relay for better understanding. As mentioned above, a relay is

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