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Audio and Amplifier Projects

How to Design High-Pass and Low-Pass Filter Circuits Quickly

Last Updated on April 10, 2022 by Swagatam 29 Comments

high2Bpass2Bgraph

In this post I have explained how to design audio filter circuits such as high pass filter and low pass filter circuits effortlessly without going through the hassles of complex simulation and calculations. The presented designs will enable creating filter circuits only for the desired specific frequency bands and block all other unwanted frequencies. What’s […]

Filed Under: Audio and Amplifier Projects Tagged With: Circuits, Design, Filter, High, Pass, Quickly

Notch Filter Circuits with Design Details

Last Updated on July 13, 2024 by Swagatam 3 Comments

In this article I will provide a detailed explanation regarding how to design notch filters with precise center frequency and for maximum impact. Where Notch Filter are Used Notch filter circuits are normally used for suppressing, nullifying, or cancelling a particular range of frequencies in order to avoid an annoying or unwanted interference within a […]

Filed Under: Audio and Amplifier Projects, Electronics Theory Tagged With: Circuits, Design, Details, Filter, Notch

60W, 120W, 170W, 300W Power Amplifier Circuit

Last Updated on May 5, 2022 by Swagatam 38 Comments

IMG 0021 2

The post presents an in-depth discussion regarding the construction details of a universal high power amplifier which can be modified or adjusted to suit any range within 60 watt, 120 watt, 170 watt or even 300 watt power output (RMS). The Design The circuit diagram in Fig. 2 tells about the highest power capability form […]

Filed Under: Audio and Amplifier Projects Tagged With: 120W, 170W, 300W, 60W, Amplifier, Power

Arduino Musical Tune Generator Circuit

Last Updated on December 5, 2024 by Swagatam 2 Comments

arduino2Bsiren

You can use this little Arduino musical tune generator circuit for a preferred application, such as for making an interesting door bell, as a car reverse horn, or music box for gifting somebody, or simply for personal amusement. Hardware Required The Hardware required for the project are given as follows: The Arduino is powered with […]

Filed Under: Arduino Projects, Audio and Amplifier Projects Tagged With: Arduino, Generator, Musical, Tune

Music Power Level Indicator Circuit using IC LM3915

Last Updated on July 31, 2024 by Swagatam 9 Comments

level2Bmeter2Bcircuit

In this post I have explained a  LED music power level indicator for indicating a subwoofer bass power range, which can be also modified as an effective dancing Electroluminescent Wire light show. The idea was requested by Mr. David. Technical Specifications Here’s an idea or suggestion for your projects or what ever lol My son […]

Filed Under: Audio and Amplifier Projects Tagged With: Indicator, Level, LM3915, Music, Power

Simple Musical Door Bell Circuit

Last Updated on January 3, 2024 by Swagatam 35 Comments

doorbell circuit

A very simple musical door bell circuit can be built and installed in homes, the design features a replaceable music chip option, and an adjustable ringtone duration, as per the user preference, we’ll learn the entire circuit procedure through the following article. Today we can find a huge range of door bells in the market […]

Filed Under: Audio and Amplifier Projects Tagged With: Bell, Door, Musical, Simple

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