In this post I have explained about a 5 simple siren circuits, using Arduino and also with ordinary components such as transistors and capacitors yet is able to produce an alarm sound at an excruciating level. The idea was contributed by “Abu-Hafss” Deeper in the article we also learn to make an advanced Arduino based […]
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How to Build a Microphone Amplifier Circuit
In this article we are going to see how to build a microphone amplifier circuit with operational amplifier LM324. This circuit can be used as good pre-amplifier for audio projects. Selecting an Opamp The heart of the mic amplifier circuit is an op-amp LM324 which is quad op-amp moulded in single IC. We are going […]
Build this Open Baffle Hi-Fi Loudspeaker System with Crossover Network
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 […]
Build this Subwoofer Amplifier 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 […]
How to Build a Pyro-ignition Circuit – Electronic Pyro Igniter system
The following conversation was made by Mr.Tom and me regarding the circuit idea of a pyro-iginition system. I was asked to design the particular circuit idea by Mr.Tom in Fiverr.com. Technical Specifications The discussion explains the details of his requirement and how it was almost fulfilled by me Hi Swagatam, I was wondering if you […]
How to Build a Boost Converter Circuit: Explained with Calculations
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 […]