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Newly Updated Circuit Projects:

Audio Dithering Circuit for Enhanced Crisper Music

Last Updated on May 15, 2026 by Swagatam 5 Comments

digitized music circuit compressed

In this article I have explained a simple circuit concept which can be used to transform an ordinary analogue audio signal into a much vibrant and crisper digital music, by adding an external random noise to the audio, which is also known as pink noise. Video dithering is a procedure for generating an image file […]

Filed Under: Audio and Amplifier Projects Tagged With: Audio, Crisper, Dithering, Enhanced, Music

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

Model Train Controller Circuit: Delay Acceleration and Braking

Last Updated on September 3, 2026 by Swagatam 9 Comments

model railway train controller compressed

In this post I have explained how to build a simple yet a realistic model train controller circuit, which can be integrated with the rail tracks of an existing motorized train system and used for controlling its speed, acceleration, deceleration with original effects. How the Circuit Works A schematic diagram for the Train Controller can […]

Filed Under: Motor Controller Tagged With: Controller, Model, Train

Automobile Tester Probe Circuit [Car Fault Finder Probe Circuit]

Last Updated on May 16, 2026 by Swagatam 4 Comments

car electrical fault finder compressed

This simple automotive electrical fault finder probe circuit will enable you to solve most electrical troubleshooting in your cars, tempos, motorcycles etc with a lot of ease and in a hassle free manner. The idea is very simple. The circuit exploits the high impedance gate value of the MOSFET which makes the circuit extremely sensitive […]

Filed Under: Automobile Electronics Tagged With: Automobile, Fault, Finder, Probe, Tester

Capacitive Fluid Meter Circuit for Sealed Tanks

Last Updated on April 11, 2021 by Swagatam 5 Comments

capacitive fluid meter circuit compressed

At times it becomes important to determine the amount of water inside a sealed tank, by employing a stationery sensor. A sensible remedy to the issue is to make use of a cylindrical capacitor concept. One plate of the capacitor is created with the liquid surrounding an insulated conductor, where insulation of the conductor works […]

Filed Under: Water Controller Tagged With: Capacitive, Fluid, Meter, Sealed, Tanks

7 Easy Sawtooth Waveform Generator Circuits using UJT, IC 555, and Transistors

Last Updated on September 22, 2026 by Swagatam 6 Comments

swatooth generator circuit compressed

In this post I have explained how to build 7 types of easy sawtooth generator circuits, using BJTs, UJTs, and IC 555. In a sawtooth waveform the voltage increases slowly in a slanting manner or diagonally, then as soon as it reaches the peak, the waveform voltage suddenly drops to zero. Once it drops to […]

Filed Under: Oscillator Circuits Tagged With: Circuits, Easy, Generator, Sawtooth, UJT, Waveform

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