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Audio and Amplifier Projects

Make this Wireless Speaker Circuit

Last Updated on January 8, 2024 by Swagatam 36 Comments

Transmitter 2

In this article I have explained a very simple circuit of a wireless speaker system which can be used for playing hi quality music wirelessly from your TV set, DVD player, Ipod, cell phone or from any music system. The speaker thus can be placed in any corner of the house within a radial distance […]

Filed Under: Audio and Amplifier Projects Tagged With: Speaker, Wireless

SMPS 2 x 50V 350W Circuit for Audio Power Amplifiers

Last Updated on January 8, 2024 by Swagatam 283 Comments

smps2B3002Bwatt2Baudio2Bamp2Bpower2Bsupply2Bcircuit

This article will illustrate a simple procedure to devise an unregulated 50V switching SMPS symmetric power supply of 350W. This unit can be substituted with the standard audio amplifier power supply to reduce expense and also the weight. The proposed power supply works as a half-bridge with no regulation. Written and Submitted by: Dhrubajyoti Biswas […]

Filed Under: Audio and Amplifier Projects, Power Supply Circuits Tagged With: 350W, 50V, Amplifiers, Audio, Power, SMPS

Make this Radio Repeater Circuit at Home

Last Updated on January 4, 2024 by Swagatam 9 Comments

repeater 2

In this post I have explained a simple radio repeater circuit which can be built by any new hobbyist or a radio amateur for communicating over long distances using ordinary transmitters and radio receivers. In this article we are going to see what radio repeater is, how it works and how to build one in […]

Filed Under: Audio and Amplifier Projects Tagged With: Home, Radio, Repeater

Real Machine Gun Sound Effect Generator Circuit

Last Updated on January 3, 2024 by Swagatam 26 Comments

1 12

Video Demonstration An impressive little machine gun sound effect generator circuit is discussed here. Once built can be integrated with any audio amplifier to experience a roaring bullet studded war like simulation. A small hobby project which can be tried by all electronic enthusiasts will generate interesting machine gun sound effect over the connected loudspeaker, […]

Filed Under: Audio and Amplifier Projects Tagged With: Effect, Generator, Machine, Real, Sound

Make this Simple Music Box Circuit

Last Updated on January 3, 2024 by Swagatam 11 Comments

musicboxcircuit

This simple circuit can be used to emulate the operation of a music box. The number of notes may be limited to 10 at the most, and therefore is capable of generating a simple melody. By: Akanksha Rathode Circuit Operation The circuit uses two popular integrated circuits: The timer 555 and 4017 decade counter Operation […]

Filed Under: Audio and Amplifier Projects Tagged With: Music, Simple

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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