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Mini Projects

Simple Diode Circuits Explained

Last Updated on June 23, 2026 by Swagatam 8 Comments

rectifier diode compressed

In this post I have explained how to use rectifier diodes for building some practical and useful electronic circuits. A diode is the most basic semiconductor electronic component, which is built with a single pn semiconductor junction. It has only two terminals, which are referred to as the anode and the cathode. Diodes can be […]

Filed Under: Mini Projects Tagged With: Circuits, Diode, Explained, Simple

Transistor Monostable Circuits with Applications

Last Updated on June 23, 2026 by Swagatam 25 Comments

transistor monostable with LED

In this post I have explained how to build a few simple monostable circuits using only transistors, and also learn how to make practical application circuits with them. If you search for transistor monostable circuit online, you will find that one typical circuit has been discussed in all the online articles. This circuit looks a […]

Filed Under: Mini Projects Tagged With: Applications, Circuits, Monostable, Transistor

Circuit Projects for Beginners and School Students

Last Updated on June 23, 2026 by Swagatam 49 Comments

simple LED flashlight

In this article I have explained how to build small electronic circuit projects suitable for beginners, young hobbyists, school students, who are new to electronics and are at the initial learning stage. Which Circuit Projects are Suitable for the Beginners? The circuit projects that are small in terms of number of component count, and are […]

Filed Under: Mini Projects Tagged With: Beginners, Projects, School, Students

Basic Op Amp Circuits and Projects

Last Updated on June 23, 2026 by Swagatam 20 Comments

op amp integrator equation relationship

In the following article I have explained op amp basic application circuits and projects, with equations, for solving their specific component values. Op-amps (operational amplifiers) are a specialized type of integrated circuit that include a directly-coupled, high-gain amplifier with an overall response characteristics adjusted by a feedback. The op-amp derives its name from the fact […]

Filed Under: Mini Projects Tagged With: Basic, Circuits, Projects

12 Simple IC 4093 Circuits and Projects Explained

Last Updated on June 23, 2026 by Swagatam 10 Comments

4093 piezo driver circuit

The 4093 is a 14-pin package containing four positive-logic, 2-input NAND Schmitt trigger gates as shown in the following figure. It is possible to operate the four NAND gates separately or collectively. The individual logic gates of the IC 4093 works in the following manner. As you can see each gate has two inputs (A […]

Filed Under: Mini Projects Tagged With: 4093, Circuits, Explained, Projects, Simple

Best IC 555 Circuits and Projects

Last Updated on June 23, 2026 by Swagatam 3 Comments

image

The IC 555 timer is a popular and adaptable integrated circuit that has established itself as a standard in the electronics industry. It is a well-liked option for DIY and educational projects thanks to its straightforward design, inexpensive price, and simplicity of accessibility. The IC 555 timer, which can produce a variety of waveforms including […]

Filed Under: Mini Projects Tagged With: 555, Best, Circuits, Projects

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