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Search Results for: amplifier

Power Amplifier Circuit using IC 741 and MOSFET

Last Updated on June 4, 2022 by Swagatam 4 Comments

In this post we study a power amplifier design configured using an ordinary IC 741 and a couple of MOSFETs. An operational amplifier’s output power such as from an IC […]

Filed Under: Amplifiers

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: Amplifiers, Audio Projects

Types of Power Amplifier Classes Explained in Simple Words

Last Updated on June 5, 2022 by R. Girish 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: Amplifiers

Build this Subwoofer Amplifier Circuit [Mini Ground-Shaker]

Last Updated on May 5, 2022 by Swagatam 11 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: Amplifiers, Audio Projects

Dummy Load Circuit for Testing Power Supplies and Amplifiers

Last Updated on May 7, 2022 by Swagatam 14 Comments

The following article explains two straightforward dummy load circuits: the first one can be used for testing high current power supplies, and the second design can be used for testing […]

Filed Under: Power Supply Circuits

Simple 10 Watt Amplifier Circuits using Transistors

Last Updated on May 5, 2022 by Swagatam 12 Comments

The post comprehensively explains 3 easy to build 10 watt power amplifier circuits, which can be built using discrete parts, such as resistors, transistors, and MOSFETs. The MOSFETs used in […]

Filed Under: Amplifiers, Mini Projects

60 Watt Amplifier Circuit

Last Updated on May 12, 2022 by Swagatam 2 Comments

The circuit of a 60 watt power amplifier is shown in the below figure. It’s design layout is simple and very conventional. It has a completely symmetrical pattern which has […]

Filed Under: Amplifiers

Public Address (PA) Amplifier Circuit

Last Updated on June 5, 2022 by Swagatam 2 Comments

A public address system (PA system) is an electronic system that includes a set of audio electronic devices such as microphones, amplifiers, loudspeakers, and other similar audio equipment. It is […]

Filed Under: Amplifiers

Bench Amplifier Circuit

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

A bench amplifier is a small test amplifier which includes basically all the features that are required for testing the performance of an input audio signal. It can be also […]

Filed Under: Amplifiers, Mini Projects

Bridged Amplifier Circuit using LM380 Circuit

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

The post explains how to configure a couple of LM380 ICs in the bridged format to create an output power that’s two times more or double of a single IC […]

Filed Under: Amplifiers, Mini Projects



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