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Build this Subwoofer Amplifier Circuit [Mini Ground-Shaker]

Last Updated on November 18, 2023 by Swagatam 15 Comments

subwoofer circuit mini ground shaker

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 allows a sound reproduction that is enhanced with deeper bass, generating a concert hall like, or an immersive theater like sound effects. By: Sania D’souza […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Build, Ground, Mini, Shaker, Subwoofer

Build this Open Baffle Hi-Fi Loudspeaker System with Crossover Network

Last Updated on November 3, 2022 by Swagatam 6 Comments

tech spec

The open baffle hi-fi, high quality speaker design introduced here provides a substitute to the common loudspeaker housing. Its sound emission pattern resembles electrostatic pattern. It works without enclosure or housing for the woofers, although employs normal dynamics for the drive units. The reproduction provides extremely ‘spacious’ impact on the ears. Contributed by: Monty Trivedi […]

Filed Under: Audio and Amplifier Projects Tagged With: Baffle, Build, Crossover, Loudspeaker, Open, System

7 Simple Inverter Circuits you can Build at Home

Last Updated on June 20, 2024 by Swagatam 240 Comments

4047 simple inverter circuit

These 7 inverter circuits might look simple with their designs, but are able to produce a reasonably high power output and an efficiency of around 75%. Learn how to build this cheap mini inverter and power small 220V or 120V appliances such drill machines, LED lamps, CFL lamps, hair dryer, mobile chargers, etc through a […]

Filed Under: Inverter Circuits Tagged With: Build, Circuits, Home, Inverter, Simple

How to Build a Boost Converter Circuit: Explained with Calculations

Last Updated on April 10, 2025 by Swagatam 184 Comments

boost

I have explained comprehensively how to build a boost converter circuit for converting a low level DC voltage inputs to a higher level DC voltage outputs. I have furnished all the required calculations s that you can design a customized boost converter circuit. A Practical Boost Converter Circuit Design using IC 555 This simple circuit […]

Filed Under: Power Supply Circuits Tagged With: Boost, Build, Calculations, Converter, Explained

Using Microwave Oven Parts to build a Soldering Iron Heat Controller

Last Updated on March 8, 2019 by Swagatam Leave a Comment

Typical microwave diagram

In this post I have explained how to scavenge discarded microwave oven parts for making a useful soldering iron heat controller circuit which can then be used for maintaining controlled heat over a connected soldering iron tip ensuring safe soldering operations, that may be quite crucial and handy if you are working with SMD parts. […]

Filed Under: Temperature Controllers Tagged With: Build, Iron, Microwave, Oven, Parts, Soldering

Build this Mosquito Bat without Battery

Last Updated on January 2, 2024 by Swagatam 57 Comments

bat

This simple homemade mosquito swatter bat neither requires a circuit nor a battery for the operation. The entire design works using a single high voltage capacitor and through quick charging from mains AC socket. (Designed by me) Introduction In a few of my earlier posts I have discussed how to make mosquito zappers using the […]

Filed Under: Pets and Pests Tagged With: Battery, Build, Mosquito, without

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