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Afrotechmods - Fun with electronics!

Straight to the point electronics tutorial videos with practical examples taught by a professional electronics engineer.

For agents: Electronics tutorial video site by a professional engineer: oscilloscope and Arduino lessons, plus reviews of Siglent test equipment.

electronics tutorialsoscilloscopearduinotest equipment reviewselectronics engineering

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# Afrotechmods - Fun with electronics!

Straight to the point electronics tutorial videos with practical examples taught by a professional electronics engineer.

## Sitemaps

- [XML Sitemap](https://afrotechmods.com/tutorials/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [What is an Oscilloscope? Oscilloscope tutorials for beginners](https://afrotechmods.com/tutorials/2011/11/27/oscilloscope-tutorials/) - An oscilloscope is the most important piece of electronic test equipment you can buy after a multimeter. The first video shows you where you how to choose an oscilloscope. The second two videos show you how to use it.
- [Multimeter tutorial - How to use a multimeter](https://afrotechmods.com/tutorials/2011/11/27/multimeter-tutorial/) - Everyone who knows anything about electricity will have heard of multimeters. They allow you to measure voltage, current, resistance and more. In this video I show you how to buy a multimeter and how to use it without killing yourself (always a plus). Update: The multimeter shown in the video is no longer available. Here
- [Function Generator Tutorial - What is a function generator / signal generator?](https://afrotechmods.com/tutorials/2011/11/27/function-generator-tutorial/) - Function generators are handy gadgets that generate waveforms. You can use them to generate sine waves, square waves, triangle waves etc of varying frequencies. The video explains why this can be useful, and shows you where you can buy a function generator for cheap. Incidentally, this kit was my first function generator.
- [Capacitor replacement tutorial](https://afrotechmods.com/tutorials/2011/11/28/capacitor-replacement-tutorial/) - You may have heard about infamous capacitor plague problem, where crappily manufactured capacitors died prematurely on people's motherboards. Even if the capacitor was properly made, they still only have a finite lifespan, typically 10,000-100,000 hours. After this, you need to replace the caps or replace the whole board. This video shows you what to do!
- [Voltage divider tutorial](https://afrotechmods.com/tutorials/2011/11/28/voltage-divider-tutorial/) - You can use voltage dividers to generate reference voltages, control audio volume, power low powered devices from specific voltages and much more. This video shows you practical voltage divider design issues and shows you the relevant equations.
- [What is an op amp? Operational Amplifier tutorial & super spy microphone circuit](https://afrotechmods.com/tutorials/2011/11/28/amplifier-tutorial-super-spy-microphone-circuit/) - Ever since the best decade of all time, the 1970s, people have been able to buy amplifiers in all-in-one chips rather than having to make them out of lots of discrete transistors. This video shows you the basics of op amps and has an example circuit where you build an amplifier to take a tiny
- [What is PWM
…

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