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Newly Updated Circuit 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

Simple Circuits using IC 7400 NAND Gates

Last Updated on June 23, 2026 by Swagatam 26 Comments

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In this article I will elucidate many assorted circuit ideas built using NAND gates from ICs such as IC 7400, IC 7413, IC 4011, and IC 4093 etc. IC 7400, IC 7413 Specifications The I.C.s 7400 and the 7413 are 14 -pin DIL ICs, or “14 pin Dual In Line Integrated Circuits”, where pin 14 […]

Filed Under: Mini Projects Tagged With: 7400, Circuits, Gates, NAND, 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

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

10 Simple IC 555 Monostable Circuits Explored

Last Updated on June 23, 2026 by Swagatam 28 Comments

ic 555 internal view compressed

In this post I have explained how IC 555 can be used for making 10 different types of monostable multivibrator circuits, such as one-shot type, debounce preventor, retriggerable type, touch switch monostable circuit and many more. A monotsable multivibrator circuit is a configuration in which, a short momentary pulse at the input of the circuit […]

Filed Under: Mini Projects Tagged With: 555, Circuits, Explored, Monostable, Simple

Simple FET Circuits and Projects

Last Updated on June 23, 2026 by Swagatam 16 Comments

calibration1

The Field-Effect Transistor or the FET is a 3 terminal semiconductor device which is used for switching high power DC loads through negligible power inputs. The FET comes with some unique features such as a high input impedance (in the megohms) and with almost zero loading on a signal source or the attached preceding stage. […]

Filed Under: Mini Projects Tagged With: Circuits, FET, Projects, Simple

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