Guide to Building Powerful Hi-Fidelity Audio Circuits at Home

How to Make High Power Audio Amplifier Circuits

Mini Tube Amplifier, Image

Even the most sophisticated DVD player or TV system may be useless without a corresponding audio output. This is enough to prove that visual entertainment is incomplete without audio, but the audio systems are just independent.

Today audio systems have become an integral part of our life, and entertainment is directly linked or synonymous with music. It all started when these amazing devices called transistors were invented; however, they looked quite different initially from the modern miniature ones.

Primitive transistors were big and bulky, called triodes, pentodes, etc. after the names of the vacuum tubes they worked like and probably replaced. These devices precisely became responsible for the development of audio systems and completely revolutionized the world by introducing the first audio amplifiers- the music era had begun.

Further research miniaturized these devices and enhanced them in the form of integrated circuits which could generate awesome audio amplification and deliver powerful music outputs, yet occupy minimum spaces.

The market today is cluttered up with a host of these systems, whether you are interested in amplifying the sound from your DVD player, home theater system, DJ installation, Walkman, or cell phone, you can get them all here, with a variety of shapes and specs.

In this section we begin with understanding of the different types of home audio systems, take a sneak peak at an amplifier circuit design involving tubes (interestingly folks still love to make them) and move ahead with many modern audio circuits that may be built right on your workbench. The circuits range from most simple to massive high power types.

List of Home Audio Equipment Types

How to Build a Single Ended Tube Amplifier

How to Make a Simple Stereo Amplifier

How to Make Small Audio Amplifiers

How to Make Class A Amplifier

How to Make a 10 Watt Amplifier

How to Make a 100 Watt Transistor Audio Amplifier

How to Build a 100 Watt MOSFET Amplifier

How to Build a 100 + 100 Watt Car Amplifier

How to Make a 250 Watts MOSFET Amplifier

How to Make Tone Controls for Stereo Amplifiers

How to Choose the Best A/V Receiver

How to Make a Home Theater System

How to Make a Home intercom System

How to Build a WiFi Signal Amplifier

Integrating Speaker Systems to an Amplifier

Though amplifiers may be considered the "heroes" when it comes to the production of quality music, it can become a complete mess if the actual sound reproducing units are not matched or optimized for compatibility with the amplifiers. Yes, the loudspeakers are the devices which bring the amplified audio to life and therefore become crucial while configuring an audio system or equipment.

The following article links precisely informs us regarding the various aspects about speakers and simple tips to get the best out of them.

How to Connect Speakers to a Computer

How Speakers Work

What are the Different Types of Amplifiers?

How Amplifiers Work

How to Build an Active Loudspeaker System

How to Install Sub-Woofers in Your Car

How to Make Speaker Crossover Networks

How to Repair Amplifiers

How to Troubleshoot Car Audio

What are Piezoelectric Transducers?

Mini Amplifier and Indicator Circuits Explained

Loudspeakers, Image

The previous sections explained about power amplifiers and loudspeakers; however amplifiers are also involved with low power applications. They are widely used in units like FM radios, cell phones, land line phones, etc. where these come built-in with the mentioned gadgets.

Electronic hobbyists are especially curious to learn what goes on inside the above gadgets and how sound gets reproduced, simulating actual speech.

The following audio circuits are constructible at home and are a treat for the many electronic enthusiasts who can make these tiny amplifier units discretely and learn a lot regarding audio amplifiers and the relevant faults and troubleshooting associated with them.

What are Operational Amplifiers

How to Make a Telephone Ring Amplifier

How to Build a Remote Control from FM Audio Frequency

What is Frequency Modulation in a FM Radio

Which are the Best Zune Transmitters

How to Make a FM Spy Transmitter

How to Build a Spy Bug Using IC 741

How to Make a Simple Radio

How to Make an Audio Level Indicator

Amplifier Circuits for Generating Amazing Sound Effects and Alarms

Today with consistent advancements in the relevant technologies, audio circuits are not restricted just to amplifiers or speakers. The devices which are used for making amplifiers are also being researched and incorporated for generating many interesting sound effects like the sound of a bird, the sound of machine guns, and how can we forget the piezo buzzers which are exploited in many different ways for indication purposes and in alarm circuits.

The linked contents given below explains the science behind the generation of sound vibrations and how they may be conditioned and enhanced into many intriguing sound effects which can also be typically experienced in computer games and various types of video games.

How to Understand the Science of Sound

How to Measure the Speed of Sound

How to Do Sound Recordings

How to Make Bird Tone Generator

How to Make a Machine Gun Sound Generator

How to Make a Simple Buzzer

How to Make an Infra Sound Ghost Simulator

How to Make a Sound Activated Alarm

References