The design and construction of a 40 watt hi-fi amplifier
Table Of Contents
<p> </p><p>Approval page</p><p>Dedication</p><p>Acknowledgement</p><p>Table of content</p><p><b>
Chapter ONE
</b></p><p>Introduction</p><p><b>Chapter TWO
</b></p><p>Components Explanation</p><p>Capacitor</p><p>Value of a capacitor</p><p>Tolerance</p><p>Working voltage</p><p>Leakage current</p><p>Component and Operation of a Capacitor</p><p>Resistor</p><p>Printed Circuit Board</p><p>Loudspeaker</p><p>Cabinet Screen</p><p>Heat Sink</p><p>Variable Resistor</p><p>Integrated Circuit</p><p>Diode</p><p><b>Chapter THREE
</b></p><p>Diagrams of project </p><p>Operation manual</p><p><b>Chapter FOUR
</b></p><p>Construction</p><p>Economic of the project</p><p>Reliability</p><p>Maintainability</p><p>Testing</p><p><b>Chapter FIVE
</b></p><p>Conclusion</p><p><b>Bibliography</b></p> <br><p></p>Project Abstract
High power amplifier are usually quite costly and usually beyond the easy reach of most audio enthusiastic (and Hi-Fi buffs) who then have to remain satisfied with those small 6 watt amplifiers. Well, with this introduction to us and to electronics, things should change. Well this low cost Hi-Fi amplifier that delivers ear chatting and thundering output of an unbelievable forty watts. The unique features of this circuit are.
- Low cost – The basic criteria
- Compact size
- Very low transient noise on “power on†and low THO
- Effective Bass and treble controls
- Automatic thermal shut down system it switches off the amplifier in case of overheating
- Load damp protection in built.
The circuit uses a high power amplifier chip viz the LA 4440. the circuit is quite self explanatory. The input is coupled by a small value capacitor. The output is taken through a block terminal and fed to the speaker.
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