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Transistors

How to Use Transistors

Last Updated on June 7, 2026 by Swagatam 50 Comments

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If you have understood correctly, how to use transistors in circuits, you might have already conquered half of  electronics and its principles. In this post we make an effort in this direction. Introduction Transistors are 3 terminal semiconductor devices which is able to conduct relatively high power across their two terminals, in response to a […]

Filed Under: Electronics Theory Tagged With: Transistors

How to Connect Two or More Transistors in Parallel

Last Updated on June 3, 2026 by Swagatam 63 Comments

parallel

Connecting transistors in parallel is a process in which the identical pinouts of two or more transistors are connected together in a circuit in order to multiply the power handling capacity of the combined parallel transistor set. In this post I have explained how to safely connect multiple transistors in parallel, these can be BJTs […]

Filed Under: Electronics Theory Tagged With: Connect, More, Parallel, Transistors

How to Make Any Light a Strobe Light Using Just Two Transistors

Last Updated on June 1, 2026 by Swagatam 168 Comments

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If you feel strobe lights very interesting but are disappointed by the fact that these wonderful light effects can be produced only through complex xenon tube then probably you are quite mistaken. It is very much possible to make any light a strobe light if you are equipped with a proper driving circuit capable of […]

Filed Under: Lamps and Lights Tagged With: Just, Light, Strobe, Transistors

Sequential Timer Circuit using Transistors

Last Updated on June 1, 2026 by Swagatam 23 Comments

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In this post I have explained to make a simple sequential timer generator circuit which can be used for getting a sequential triggering of a connected load, or can be simply used like a sequential LED bar graph effect generator, using only transistors. The idea was requested by Mr Babusan.  Technical Specifications Is it possible […]

Filed Under: Lamps and Lights Tagged With: Sequential, Timer, Transistors

How to Connect Transistors (BJT) and MOSFET with Arduino

Last Updated on May 20, 2026 by Swagatam 14 Comments

BJT PNP NPN pinouts

The interfacing of power devices like BJTs, and MOSFETs with Arduino output is a crucial configuration which allows switching high power loads through low power outputs of an Arduino. In this article we elaborately discuss the correct methods of using or connecting transistors like BJTs and mosfets with any microcontroller or an Arduino. Such stages […]

Filed Under: Electronics Theory Tagged With: Arduino, BJT, Connect, MOSFET, Transistors

DC Biasing in Transistors – BJTs

Last Updated on May 20, 2026 by Swagatam 2 Comments

In simple terms, biasing in BJTs may be defined as a process in which a BJT is activated or switched ON by applying a smaller magnitude of DC is across its base/emitter terminals so that its is able to conduct a relatively larger magnitude of DC across its collector emitter terminals. The working of a […]

Filed Under: Electronics Theory Tagged With: Biasing, BJTs, DC, Transistors

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