Building the Simplest, Best Sounding, Yet Most Inefficient Audio Amp!

by GreatScottLab in Circuits > Electronics

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Building the Simplest, Best Sounding, Yet Most Inefficient Audio Amp!

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In this project I will be showing you how to create a class A audio amp. The great thing about such amps is that they only require a few components and sound awesome. On the other hand though, their efficiency is not that great. But since I will be creating this amp for a smartphone with a USB Type-C port for powering the amp, it should be just fine. So let me show you how to calculate a design for such an amp and how to build it! Let's get started!

Watch the Video!

Building the simplest, best sounding, yet most inefficient Audio Amp! || Class A Audio Amp Tutorial

The video gives you pretty much all the general information when it comes to building a class A audio amp. During the next steps though, I will present you some additional details.

Order Your Components!

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Here you can find a parts list with example seller (affiliate links):

2x BC337 NPN BJT: https://s.click.aliexpress.com/e/_9I1F1z

2x 100Ω, 2x 22Ω, 2x 3.3kΩ, 2x 1kΩ Resistor: https://s.click.aliexpress.com/e/_dTPpXjt

4x 10µF Capacitor: https://s.click.aliexpress.com/e/_d7dOwRz

1x USB Type-C breakout board: https://s.click.aliexpress.com/e/_AonKUJ

1x Audio jack: https://s.click.aliexpress.com/e/_9IfcXd

1x Audio plug: https://s.click.aliexpress.com/e/_ABC7UL

1x Perfboard: https://s.click.aliexpress.com/e/_A5V4B5

Build the Circuit!

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Here you can find the schematic of the circuit along with reference pictures of my own board. Use it to solder up your own amp.

3D Print the Enclosure!

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Here you can find the .stl files for my enclosure. Print it with your 3D printer and put your class A amp inside!

Downloads

Success!

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You did it! You just created your own class A audio amp!

Feel free to check out my YouTube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab

You can also follow me on Facebook and Twitter for news about upcoming projects and behind the scenes information:

https://twitter.com/GreatScottLab
https://www.facebook.com/greatscottlab