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New T-shirt store and GawkBox - Duration: 79 seconds.
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For purchase video: Why electrolytic capacitors are actually kinda shitty 💩 - Duration: 7 minutes, 15 seconds.
$0.99This video is purchase only. (Own, not rental). A demonstration is shown highlighting the difference in performance between electrolytic and ceramic capacitors in power supplies. Other topics discu...- CC
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Fun with 1.1GHz Potato chips - Duration: 2 minutes, 55 seconds.
I built a ring oscillator using a 1.125GHz 74 series logic inverter IC from Potato Semiconductor. It was fun.
You can support the channel for free on Gawkbox! http://www.gawkbox.com/afrotechmods
Ma...- CC
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📡 Siglent SSA3032X Spectrum Analyzer Review & Experiments - Duration: 25 minutes.
Afroman reviews Siglent's SSA3000X series spectrum analyzer and all the options. There is some RF information for beginners and usage experiments are also performed. Firmware version 1.2.8.2.
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You can learn Arduino in 15 minutes. - Duration: 16 minutes.
The ultimate Arduino tutorial for beginners. Learn how to choose an Arduino, dim LEDs, build a motor speed controller and more. Sponsored by Audible - Get a free 30 day trial & download one free ti...- CC
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🔊 How to make an LM386 audio amplifier circuit - Duration: 6 minutes, 37 seconds.
How to use the popular LM386 class AB audio amplifier IC to build a simple mono 1 watt audio amplifier. It costs less than $3 in parts!
Sponsored by The Great Courses Plus. Get 30 free days at: htt...- CC
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Electronics for Beginners
Videos on the basics of electricity covering electrical current, voltage, resistance and power. Simple LED circuits and how to calculate resistor values are shown.-
Basic Electricity - What is an amp? - Duration: 5 minutes, 41 seconds.
What is electrical current? What are amps? Find out in this video!
Next video on voltage: http://www.youtube.com/watch?v=TBt-kxYfync
Website: http://www.afrotechmods.com- CC
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🔌 Basic Electricity - What is voltage? - Duration: 9 minutes, 4 seconds.
What is voltage and what does it do? Learn about volts, coulombs, joules, power supplies and more in this video!
Previous video on amps: http://www.youtube.com/watch?v=8gvJzrjwjds
Website: http://w...- CC
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LED Basics - Duration: 4 minutes, 57 seconds.
A tutorial on the basics of using LEDs (light emitting diodes). Polarity, forward voltage and current are discussed.
300 LEDs for $13: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromod...
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Basic Electricity - Resistance and Ohm's law - Duration: 9 minutes, 10 seconds.
A tutorial on the basics of resistance, resistors, and Ohm's law which describes the relationship between voltage, current and resistance. I also show you how to build a simple resistor + LED circu...- CC
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THE BEST Multimeter tutorial (HD) - Duration: 4 minutes, 36 seconds.
What to look for in a multimeter and how to use a multimeter to measure voltage, current, resistance and continuity.
Recommended multimeter: http://www.amazon.com/exec/obidos/ASIN/B000JQ4O2U/afromo...- CC
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Basic Electricity - Power and watts - Duration: 5 minutes, 21 seconds.
A tutorial on electrical power and watts. A practical example of light bulb power measurement is shown as well as a demo how to calculate appropriate resistor sizes.
Website: http://bit.ly/2gHy8xd...- CC
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How to build power supplies!
Transformers, diodes, voltage regulators, switch mode power supplies, everything you need to know!-
What is a Transformer? An Electrical Transformer Tutorial - Duration: 11 minutes.
The basics of how transformers work, where to shop for step down mains transformers, and how to wire one up to mains voltages. European and North American wiring is discussed. DO NOT FORGET TO ADD ...- CC
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Diode Tutorial & How to build an AC to DC power supply - Duration: 11 minutes.
This video covers the basics of diodes, bridge rectifiers, and how to build simple unregulated AC to DC power supplies than can handle a few mA up to several Amps.
General purpose 1A diodes: http:/...- CC
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Voltage regulator tutorial & USB gadget charger circuit - Duration: 6 minutes, 28 seconds.
The basics of linear voltage regulators - what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can power USB powered gadgets.
5 vo...- CC
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LM317 Adjustable Voltage Regulator Tutorial - Duration: 4 minutes, 8 seconds.
A tutorial on the LM317 voltage regulator. Shows you how to make a 1.25 to 25V adjustable voltage supply, or choose any other output voltage you want. An example of a fan speed controller is shown....- CC
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Switch mode power supply tutorial: DC-DC buck converters - Duration: 10 minutes.
I explain buck converters (a type of switch mode power supply) and how to build a 5V 5A power supply using an LM2678.
Website: http://www.afrotechmods.com/
Parts:
http://octopart.com/bom-lookup/78...- CC
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Adjustable switch mode power supply tutorial - Duration: 6 minutes, 18 seconds.
A tutorial on feedback resistors in DC-DC converters and how to build a high current adjustable power supply using an LM2678.
Check out my webpage for more electronics! http://www.afrotechmods.com
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Playlists
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Recommended videos - Playlist
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How to build power supplies! - Playlist
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All about batteries - Playlist
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Oscilloscope tutorials - Playlist
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Tutorials about inductors - Playlist
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Passive filters - Playlist
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Tutorials about inductors
Tutorials on inductors, inductance, RL filters and inductive spiking-
Inductor basics - What is an inductor? - Duration: 3 minutes, 54 seconds.
The basics of how inductors work, a demo showing an inductor filtering out high frequency signals, a quick low pass LC filter, and a demo showing the magnetic field created around inductors.
Webpag...- CC
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Inductance basics - Duration: 3 minutes, 51 seconds.
The basics of inductance - how increased inductance creates a heavier filtering effect, and how coil windings and core materials affect the inductance of an inductor.
Inductance/capacitance meter: ...- CC
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Passive low pass RL filters - Duration: 3 minutes, 21 seconds.
An intro to passive low pass RL filters. An example of a 2kHz audio crossover circuit for a woofer is given, where the low frequencies are allowed to pass through and the high frequencies get filte...- CC
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Inductive spiking, and how to fix it! - Duration: 4 minutes, 54 seconds.
A description of inductive spiking, why it happens, and how a diode can save your circuits. Make sure you enable annotations as there is an error in one of the diagrams.
100 diodes for $2 on Amazon...- CC
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