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Simple Hum Filter Circuit for Amplifiers

Last Updated on May 5, 2022 by Swagatam Leave a Comment

The following post discusses a simple hum filter circuit which can be installed between an audio input source and a power amplifier, so that any possible mains hum frequency within […]

Filed Under: Audio and Amplifier Projects

Light Controlled Sound Effect Generator Circuit

Last Updated on December 16, 2021 by Swagatam 6 Comments

This unique circuit allows you to create many different sound effect outputs simply by moving your hands over a couple of light dependent resistors, by varying the intensity of incident […]



Filed Under: Audio and Amplifier Projects

Types of Power Amplifier Classes Explained in Simple Words

Last Updated on January 5, 2023 by Swagatam Leave a Comment

In this post we are going to explore power amplifiers and their classification according to their output electrical characters and application. We will be exploring amplifier classes: A, B, AB, […]

Filed Under: Audio and Amplifier Projects

FM Signal Booster Circuit with Adjustable Gain

Last Updated on January 11, 2023 by Swagatam 7 Comments

Did you’ve ever had trouble catching or establishing connection with distant FM radio stations which were broadcasting programmes you wanted to listen to? Perhaps you’re aware there are a lot more […]

Filed Under: Audio and Amplifier Projects

Build this Subwoofer Amplifier Circuit [Mini Ground-Shaker]

Last Updated on November 17, 2022 by Swagatam 13 Comments

A subwoofer amplifier is basically a power amplifier designed to filter and extract the low frequency content from the input audio signal and amplify it to the desired levels. This […]

Filed Under: Audio and Amplifier Projects

10 Useful Active Filter Circuits Explored

Last Updated on November 3, 2021 by Swagatam 5 Comments

In this post we comprehensively discuss 10 different types of active filter circuits which can be used for filtering music and audio with the desired levels of bass and treble […]

Filed Under: Audio and Amplifier Projects



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