# ![@afrotechmods Avatar](https://lunarcrush.com/gi/w:26/cr:youtube::UCosnWgi3eorc1klEQ8pIgJQ.png) @afrotechmods Afrotechmods

Afrotechmods posts on YouTube about engineering, how to, tutorial, build a the most. They currently have [-------] followers and [--] posts still getting attention that total [-----] engagements in the last [--] hours.

### Engagements: [-----] [#](/creator/youtube::UCosnWgi3eorc1klEQ8pIgJQ/interactions)
![Engagements Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCosnWgi3eorc1klEQ8pIgJQ/c:line/m:interactions.svg)

- [--] Week [------] +13%
- [--] Month [------] -5.70%
- [--] Months [-------] -26%
- [--] Year [---------] +150%

### Mentions: [--] [#](/creator/youtube::UCosnWgi3eorc1klEQ8pIgJQ/posts_active)
![Mentions Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCosnWgi3eorc1klEQ8pIgJQ/c:line/m:posts_active.svg)

- [--] Month [--] -10%
- [--] Months [--] +18%
- [--] Year [--] +153%

### Followers: [-------] [#](/creator/youtube::UCosnWgi3eorc1klEQ8pIgJQ/followers)
![Followers Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCosnWgi3eorc1klEQ8pIgJQ/c:line/m:followers.svg)

- [--] Week [-------] no change
- [--] Month [-------] +0.12%
- [--] Months [-------] +0.62%
- [--] Year [-------] +1.80%

### CreatorRank: [---------] [#](/creator/youtube::UCosnWgi3eorc1klEQ8pIgJQ/influencer_rank)
![CreatorRank Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCosnWgi3eorc1klEQ8pIgJQ/c:line/m:influencer_rank.svg)

### Social Influence

**Social category influence**
[social networks](/list/social-networks)  [technology brands](/list/technology-brands) 

**Social topic influence**
[engineering](/topic/engineering), [how to](/topic/how-to), [tutorial](/topic/tutorial), [build a](/topic/build-a) #1946, [$diod](/topic/$diod) #10, [science](/topic/science), [what is](/topic/what-is), [check out](/topic/check-out), [audio](/topic/audio), [light](/topic/light)

**Top accounts mentioned or mentioned by**
[@navneetdjrepairing](/creator/undefined) [@everyflavorrobot](/creator/undefined) [@e_mhil](/creator/undefined)

**Top assets mentioned**
[Diodes Inc (DIOD)](/topic/$diod)
### Top Social Posts
Top posts by engagements in the last [--] hours

"🔊 How to make an LM386 audio amplifier circuit How to use the popular LM386 class AB audio amplifier IC to build a simple mono [--] watt audio amplifier. It costs less than $3 in parts Sponsored by The Great Courses Plus. Get [--] free days at: http://ow.ly/8N2c307LfKL LM386s on Amazon: https://www.amazon.com/exec/obidos/ASIN/B01MUHBZ91/afromods-20 Circuit diagram: http://bit.ly/2kep7h9 Duke Nukem Theme by Ed Dekker: http://youtu.be/MzptQ4ZuTTI Additional music by http://www.bensound.com #Electronics #Engineering #Amplifier LM386 audio amplifier circuit electronics electronic electrical"  
[YouTube Link](https://youtube.com/watch?v=4ObzEft2R_g)  2017-01-17T16:40Z 813K followers, 720.6K engagements


"Fun with ultracapacitors Don't do anything I did in this video. These capacitors are not designed to be shorted and doing so is dangerous. And no you cannot make a welder out of these. I got hold of some 2600F capacitors that can dump hundreds of amps. Normally these are used in electric cars to handle sudden stops and starts. Instead I use them to vaporize bits of metal and show you the [--] most important capacitor equations along the way. Ultracapacitors on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00MEKR11U/afromods-20 Check out my website http://www.afrotechmods.com for more great"  
[YouTube Link](https://youtube.com/watch?v=EoWMF3VkI6U)  2010-12-13T23:49Z 813K followers, 2.2M engagements


"Inductive spiking and how to fix it 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. Example diodes on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00W17LOBO/afromods-20 Check out my webpage for more handy electronics tutorials http://www.afrotechmods.com inductive spike diode inductor voltage electronic clamp flyback freewheeling catch EMF inductive spike diode inductor voltage electronic clamp flyback freewheeling catch EMF"  
[YouTube Link](https://youtube.com/watch?v=LXGtE3X2k7Y)  2011-09-21T06:25Z 813K followers, 657.1K engagements


"🔌 Basic Electricity - What is voltage 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/watchv=8gvJzrjwjds Website: http://www.afrotechmods.com Twitter: http://twitter.com/afrotechmods Facebook: http://bit.ly/2cMrAeu #Physics #Engineering #Electronics electronics electricity voltage volts volt basic electricity physics joule coulomb energy potential energy electrical potential energy science engineering electrical electronics engineering electrical engineering power supply ampere amp"  
[YouTube Link](https://youtube.com/watch?v=TBt-kxYfync)  2016-10-03T16:59Z 813K followers, 1.4M engagements


"Frequency Modulation tutorial & FM radio transmitter circuit This video explains what frequency modulation (FM) is and shows a simple low powered FM radio transmitter circuit you can build. It has a range of about [--] meters. Check out my webpage for more videos about electronics http://www.afrotechmods.com PCB: http://www.oshpark.com/shared_projects/WcqBnpXg Design files: http://www.afrotechmods.com/FMTransmitter.zip Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ electronics electrical engineering FM frequency modulation circuit PCB antenna modulation"  
[YouTube Link](https://youtube.com/watch?v=ZUxDXXBO3eA)  2015-12-19T21:38Z 813K followers, 275.4K engagements


"🔋 Battery amp-hour watt-hour and C rating tutorial A guide to battery capacity measurement including amp-hours watt-hours C ratings and more. Website: http://www.afrotechmods.com/ The Amp Hour podcast: http://www.theamphour.com/ Ampere-hour (Unit Of Charge) Ampere (Unit Of Electric Current) amp hour watt hour capacity battery charge electronics electrical engineering Kilowatt Hour (Unit Of Energy) C rating discharge discharge curve circuit Robot Battery (Invention) Ampere-hour (Unit Of Charge) Ampere (Unit Of Electric Current) amp hour watt hour capacity battery charge electronics electrical"  
[YouTube Link](https://youtube.com/watch?v=cxkVxi9P0EA)  2014-09-25T17:39Z 813K followers, 1.7M engagements


"Diode Tutorial & How to build an AC to DC power supply 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://www.amazon.com/exec/obidos/ASIN/B008LTJOX6/afromods-20 Check out my webpage for more videos about electronics http://www.afrotechmods.com I recommend watching my transformer tutorial first if you are confused about where I am getting the AC voltages from: http://www.youtube.com/watchv=GMePE7NZcxw Here is a followup video on how to make a"  
[YouTube Link](https://youtube.com/watch?v=cyhzpFqXwdA)  2010-11-19T09:18Z 813K followers, 3.8M engagements


"Voltage regulator tutorial & USB gadget charger circuit 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. [--] volt regulators: http://www.amazon.com/exec/obidos/ASIN/B01M32I31S/afromods-20 (Amazon affiliate link) This video builds on material covered in my tutorial on building unregulated power supplies: http://www.youtube.com/watchv=cyhzpFqXwdA Webpage: http://www.afrotechmods.com/ Twitter: http://twitter.com/Afrotechmods Facebook:"  
[YouTube Link](https://youtube.com/watch?v=GSzVs7_aW-Y)  2010-11-24T07:24Z 813K followers, 5.1M engagements


"How to protect circuits from reversed voltage polarity How to use diodes schottky diodes and P-FETs to protect your circuits from reversed voltage/power connections. Website: http://www.afrotechmods.com/ Tutorial electronics electric circuit P-FET MOSFET Diode protection P-channel semiconductor voltage polarity Field-effect Transistor Tutorial electronics electric circuit P-FET MOSFET Diode protection P-channel semiconductor voltage polarity Field-effect Transistor"  
[YouTube Link](https://youtube.com/watch?v=IrB-FPcv1Dc)  2011-12-02T07:03Z 813K followers, 2.4M engagements


"Basic Electricity - Resistance and Ohm's law A tutorial on the basics of electrical 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 circuit. [---] LEDs for $9: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20 [---] resistors for $9: http://www.amazon.com/exec/obidos/ASIN/B07QXP4KVZ/afromods-20 9V battery clips: http://www.amazon.com/exec/obidos/ASIN/B08SL9X2YC/afromods-20 Adjustable power supply: http://www.amazon.com/exec/obidos/ASIN/B08HYK2ZW3/afromods-20 (Amazon"  
[YouTube Link](https://youtube.com/watch?v=NfcgA1axPLo)  2016-11-07T23:38Z 813K followers, 2.7M engagements


"Basic Electricity - Power and watts 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 Twitter: http://twitter.com/afrotechmods Facebook: http://bit.ly/2cMrAeu electricity watts watt power light LED amp ampere volt voltage electrical electronics circuit electrical engineering afrotech afrotechmods resistor multimeter lamp electronics engineering electricity watts watt power light LED amp ampere volt voltage electrical electronics circuit electrical"  
[YouTube Link](https://youtube.com/watch?v=VSpB3HivkhY)  2016-11-30T03:01Z 813K followers, 744.8K engagements


"LED Basics A tutorial on the basics of using LEDs (light emitting diodes). Polarity forward voltage and current are discussed. [---] LEDs for $13: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20 [---] resistors for $12: http://www.amazon.com/exec/obidos/ASIN/B008MH97I4/afromods-20 Adjustable power supply: https://www.amazon.com/exec/obidos/ASIN/B08HYK2ZW3/afromods-20 (Amazon affiliate links) Previous video on volts: http://www.youtube.com/watchv=TBt-kxYfync Next video on resistors: http://www.youtube.com/watchv=NfcgA1axPLo Website: http://www.afrotechmods.com Twitter:"  
[YouTube Link](https://youtube.com/watch?v=Yo6JI_bzUzo)  2016-10-22T04:23Z 813K followers, 2.7M engagements


"THE BEST Multimeter tutorial (HD) What to look for in a multimeter and how to use a multimeter to measure voltage current resistance and continuity. UPDATE: Unfortunately the multimeter in the video is no longer being made so instead here are some alternatives I recommend: Recommended multimeter: http://www.amazon.com/exec/obidos/ASIN/B00KXX2OYY/afromods-20 High quality electrician grade multimeter: http://www.amazon.com/exec/obidos/ASIN/B000OCFFMW/afromods-20 (Amazon affiliate links) You can support the production of more videos like these by visiting http://www.afrotechmods.com/"  
[YouTube Link](https://youtube.com/watch?v=bF3OyQ3HwfU)  2010-03-18T23:55Z 813K followers, 6.2M engagements


"What is a schottky diode A tutorial covering the advantages and disadvantages of schottky diodes over regular silicon diodes. [---] diodes for $8 on Amazon: http://www.amazon.com/exec/obidos/ASIN/B07BTY8FD2/afromods-20 Webpage: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ Schottky Diode Schottky Barrier Physics (Field Of Study) electronics circuit Volt (Unit Of Potential) Ampere (Unit Of Electric Current) semiconductor diode Electrical Engineering (Industry) Electronic Engineering (Field Of Study) Oscilloscope (Invention)"  
[YouTube Link](https://youtube.com/watch?v=bXEyCf1P0UU)  2015-05-29T18:29Z 813K followers, 2.3M engagements


"You can learn Arduino in [--] 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 [--] day trial & download one free title: http://www.audible.com/afrotechmods Example UNO kit: http://amzn.to/2mRjqLa Example UNO robot kit: http://www.amazon.com/exec/obidos/ASIN/B07KPZ8RSZ/afromods-20 (Amazon affiliate links) Website: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ If you are feeling extra generous bookmark this"  
[YouTube Link](https://youtube.com/watch?v=nL34zDTPkcs)  2017-03-17T19:58Z 813K followers, 10.4M engagements


"LM317 Adjustable Voltage Regulator Tutorial A tutorial on the LM317 voltage regulator. Shows you how to make a [----] to 25V adjustable voltage supply or choose any other output voltage you want. An example of a fan speed controller is shown. LM317s on Amazon: https://www.amazon.com/exec/obidos/ASIN/B07T5ZHY63/afromods-20 Want more easy to follow videos about electronics Check out my website http://www.afrotechmods.com LM317 voltage regulator adjustable LM317T LM317AT circuit diagram tutorial fan speed controller electronics diy Voltage Regulator LM317 voltage regulator adjustable LM317T"  
[YouTube Link](https://youtube.com/watch?v=IjJWWGPjc-w)  2011-04-18T05:05Z 813K followers, 1.6M engagements


"What is an op amp Operational Amplifier tutorial & super spy microphone circuit Afroman goes over the basics of how to use an op amp (operational amplifier) to amplify tiny voltages and builds a circuit to listen to very faint sounds with a microphone. LM324 Quad op amp: http://www.amazon.com/exec/obidos/ASIN/B0088VAA80/afromods-20 Circuit diagram: http://www.afrotechmods.com/groovy/amplifier_tutorial/amplifier_tutorial.htm Check out my webpage http://www.afrotechmods.com for more videos about electronics Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/"  
[YouTube Link](https://youtube.com/watch?v=TQB1VlLBgJE)  2009-12-16T03:06Z 813K followers, 895.9K engagements


"What is PWM Pulse Width Modulation tutorial I cover the basics of PWM and show you how to cheaply build a PWM circuit that can dim LEDs control the speed of a motor or control the power going to pretty much anything you want Circuit diagram: http://afrotechmods.com/groovy/PWM_tutorial/PWM_tutorial.htm Check out my webpage for more easy videos about electronics http://www.afrotechmods.com Pwm Circuit Electronics Dimmer Speed control Pulse Width Modulation Robot Pulse-width Modulation Pwm Circuit Electronics Dimmer Speed control Pulse Width Modulation Robot Pulse-width Modulation"  
[YouTube Link](https://youtube.com/watch?v=YmPziPfaByw)  2008-11-16T01:58Z 813K followers, 688K engagements


"Amplitude Modulation tutorial and AM radio transmitter circuit This video covers the history of the discovery of radio waves to the creation of simple oscillator based radio transmitters. Then I explain what modulation and amplitude modulation are and show you how to build a low powered AM radio transmitter. My webpage: http://www.afrotechmods.com Original design by Stefan0719: http://www.youtube.com/watchv=f42W9jNHMZ0 Kickass music by imeddy: http://www.youtube.com/watchv=MzptQ4ZuTTI AM amplitude modulation radio transmitter circuit tutorial electronics RF electromagnetic frequency Amplitude"  
[YouTube Link](https://youtube.com/watch?v=3I_e7gIyfQg)  2011-01-11T00:17Z 813K followers, 515.2K engagements


"Basic Electricity - What is an amp What is electrical current What are amps Find out in this video Next video on voltage: http://www.youtube.com/watchv=TBt-kxYfync Website: http://www.afrotechmods.com Twitter: http://twitter.com/afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ #Physics #Science #Engineering #Electronics Electricity amps ampere Electricity amps ampere"  
[YouTube Link](https://youtube.com/watch?v=8gvJzrjwjds)  2011-10-24T04:42Z 813K followers, 2.6M engagements


"⚡ "It's not the volts that kill you it's the amps" ⚡ I debunk the popular myth that it's not the volts that kill you it's the amps. Basically the volts directly determine the current flowing through your body so the phrase is stupid and dangerously misleading. You can support the production of more videos like these by visiting: http://www.afrotechmods.com volts amps safety electrocution ohms law electric electronics kill electrical resistance taser Volt (Unit Of Potential) Ampere (SI Base Unit) volts amps safety electrocution ohms law electric electronics kill electrical resistance taser"  
[YouTube Link](https://youtube.com/watch?v=8xONZcBJh5A)  2011-07-21T04:48Z 813K followers, 1.5M engagements


"Switch mode power supply tutorial: DC-DC buck converters 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/781DMaFT Schematic: https://i.imgur.com/iwWnvXv.jpg Buck Converter Switched-mode Power Supply DC-to-DC Converter Power Supply Unit electronics circuit science power supply Robot Buck Converter Switched-mode Power Supply DC-to-DC Converter Power Supply Unit electronics circuit science power supply Robot"  
[YouTube Link](https://youtube.com/watch?v=CEhBN5_fO5o)  2014-08-18T17:38Z 813K followers, 1M engagements


"How to build a simple laser tachometer Did you know you can use an LED as a light sensor In this video I show you how to use this phenomenon to build a laser tachometer capable of measuring the RPM of mechanical devices. Professional laser tachometer on Amazon: http://www.amazon.com/exec/obidos/ASIN/B000VC8RSE/afromods-20 Check out my webpage for more electronic projects http://www.afrotechmods.com Tachometer Do It Yourself (Hobby) Electronics (Field Of Study) electronics Electronic Engineering (Field Of Study) circuit Light-emitting Diode (Invention) LED Laser (Invention) Laser Diode"  
[YouTube Link](https://youtube.com/watch?v=RfitqGLPCUY)  2015-08-16T00:33Z 813K followers, 254.2K engagements


"What is a zener diode A tutorial on zener diodes and how to use them as voltage clamps voltage regulators and how to create audio distortion circuits. [---] assorted zener diodes on Amazon for $10: http://www.amazon.com/exec/obidos/ASIN/B015D0B3B6/afromods-20 Check out my webpage for more videos about electronics http://www.afrotechmods.com Zener Diode diode zener voltage current Electronics (Field Of Study) Electronic Engineering (Field Of Study) engineering science circuit hacking zener diode tutorial Electrical Engineering Technology (Field Of Study) Electrical Engineering (Industry)"  
[YouTube Link](https://youtube.com/watch?v=xSQHfsHTS88)  2015-06-14T20:54Z 813K followers, 1.2M engagements


"🔋 How to charge a LiPo battery with a power supply How to charge a single cell lithium ion or lithium polymer battery with an adjustable current limiting bench power supply. Adjustable power supply on Amazon: http://www.amazon.com/exec/obidos/ASIN/B09BFDZ85C/afromods-20 Multi chemistry charger: http://www.amazon.com/exec/obidos/ASIN/B00466PKE0/afromods-20 Check out my website for more videos about electronics: http://www.afrotechmods.com Patreon and more http://www.afrotechmods.com/support/support.htm Lithium Polymer Battery (Battery Cell Type) Lithium-ion Battery (Battery Cell Type) LiPo"  
[YouTube Link](https://youtube.com/watch?v=0yhbof6_s64)  2014-12-05T00:06Z 813K followers, 475.9K engagements


"Passive low pass RL filters 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 filtered out. More videos at http://www.afrotechmods.com Music credit: http://soundcloud.com/bf-recordings/bfree-db003-harsher-the-cube passive RL low pass filter inductor inductance audio crossover woofer speaker electromagnetic impedance electronic electric circuit LC Low-pass Filter Electronic Filter passive RL low pass filter inductor inductance audio crossover woofer"  
[YouTube Link](https://youtube.com/watch?v=7jRl_XtyRCo)  2011-08-24T05:01Z 813K followers, 371.2K engagements


"Siglent SDG6000X Arbitrary Waveform Generator Review A review of Siglent's SDG6052X 500MHz arbitrary waveform generator with the I/Q upgrade. Webpage: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ Siglent Waveform Generator Arbitrary AWG Function generator RF radio frequency electronics electrical engineering EE technician SDG6000X SDG6052X Arbitrary waveform generator Afrotechmods voltage volts electronic engineering electrical engineering 433Mhz FM AM Modulation Frequency Modulation Amplitude Modulation QAM 16-QAM"  
[YouTube Link](https://youtube.com/watch?v=Fzq68nXrWLM)  2018-03-16T17:03Z 813K followers, 59K engagements


"Exploding electronic components in HD Let's have a little fun blowing up resistors electrolytic capacitors and transistors. Check out my website http://www.afrotechmods.com for more videos about electronics The music is the final part of Tchaikovsky's [----] overture"  
[YouTube Link](https://youtube.com/watch?v=JCPXckfT-6g)  2010-01-25T01:00Z 806K followers, 2.4M engagements


"Passive RC low pass filter tutorial A tutorial on passive low pass RC filter circuits and how they affect the frequency content of signals. An example of an RC filter that could go before a subwoofer's amplifier is given. The sound clips are from Pendulum's Slam in Hold Your Colour. More videos at http://www.afrotechmods.com"  
[YouTube Link](https://youtube.com/watch?v=OBM5T5_kgdI)  2010-12-25T02:53Z 808K followers, 913K engagements


"This chip will RUIN your circuit This is a video about op-amp non-idealities including power supply rails output voltage swing input offset voltage slew rate and gain-bandwidth product. I also suggest several op amps that you could use instead of an LM741 because the LM741 has very poor performance by modern standards. Website: http://www.afrotechmods.com Twitter: https://x.com/afrotechmods Facebook: https://www.facebook.com/Afrotechmods/ 0:00 Introduction 0:47 Brief background on the [---] 1:23 People still teach op amps with the LM741 1:45 Inconvenient power supply voltages 2:10 Op amp output"  
[YouTube Link](https://youtube.com/watch?v=e67WiJ6IPlQ)  2025-04-01T16:24Z 813K followers, 214.8K engagements


"Oscilloscope Tutorial Part [--] - Basic usage Oscilloscope probe settings how to use a probe vertical/horizontal scaling DC and AC coupling. 2016's top recommended oscilloscope: http://www.amazon.com/exec/obidos/ASIN/B012938E76/afromods-20 Part [--] of the tutorial is here: http://www.youtube.com/watchv=qIfo_-d82Co Part [--] is here: http://www.youtube.com/watchv=g_KuGEh0PyA Check out my webpage for more tutorials http://www.afrotechmods.com"  
[YouTube Link](https://youtube.com/watch?v=hUIgAu3QQWQ)  2008-10-05T02:47Z 796K followers, 345.2K engagements


"H Bridge Motor Speed Controller Tutorial An explanation of H bridges (a type of motor control circuit). I also show you how to build a bidirectional motor speed controller. Website: http://www.afrotechmods.com ----===Click "Show More"===---- Parts: NE555 timer: https://octopart.com/searchq=NE555&start=0 N-channel MOSFET: https://octopart.com/searchq=psmn022-30PL.127&start=0 P-channel MOSFET: https://octopart.com/searchq=FQP27P06&start=0 If you are feeling extra generous bookmark this link and use it as your Amazon home page:"  
[YouTube Link](https://youtube.com/watch?v=iYafyPZ15g8)  2014-04-12T05:17Z 813K followers, 647.4K engagements


"Oscilloscope Tutorial Part 1/3 - What is an oscilloscope The first part in a series of tutorials to teach you the basics of oscilloscopes. In this part: What is an oscilloscope why do you need one which scopes are a good deal and where do I get one Make sure you have annotations enabled because I had to update some of the information in the video. Oscilloscopes tutorial part [--] here: http://www.youtube.com/watchv=hUIgAu3QQWQ Part [--] here: http://www.youtube.com/watchv=g_KuGEh0PyA Check out my website for more tutorials http://www.afrotechmods.com"  
[YouTube Link](https://youtube.com/watch?v=qIfo_-d82Co)  2008-09-28T03:40Z 797K followers, 440.5K engagements


"DC-DC Boost converter tutorial How boost converters work and how to build a 50W adjustable boost converter circuit. Want more videos like this Visit http://www.afrotechmods.com Parts list: LT1370HV: http://octopart.com/lt1370hvct7%23pbf-linear+technology-532702 Electrolytic capacitors: http://octopart.com/eeu-fm1h471-panasonic-208645 Input and output ceramic caps: http://octopart.com/partsearch#q=UMK325BJ106MM-T Schottky diode: http://octopart.com/stps5l60-stmicroelectronics-334357 10uH inductor: http://octopart.com/aiur-06-100k-abracon-18619318 Potentiometer:"  
[YouTube Link](https://youtube.com/watch?v=wJU7AJgERG8)  2014-09-15T01:09Z 813K followers, 769.7K engagements


"RAM overclocking failure DDR2 takes 12V. right Check out my webpage all about electronics: http://www.afrotechmods.com fire explosion RAM DDR DDR2 DIMM computer blow up Random-access Memory Overclocking (Hobby) fire explosion RAM DDR DDR2 DIMM computer blow up Random-access Memory Overclocking (Hobby)"  
[YouTube Link](https://youtube.com/watch?v=Gw-rUCwLoQ0)  2011-08-25T23:13Z 813K followers, 10.7M engagements


"OWON SDS6062 oscilloscope review OWON SDS6062 oscilloscope review. Review sample provided by Saelig: http://www.saelig.com/category/PSBEB100.htm Website: http://www.afrotechmods.com OWON SDS6062 SDS [----] oscilloscope review electronics engineering electrical measurement test OWON SDS6062 SDS [----] oscilloscope review electronics engineering electrical measurement test"  
[YouTube Link](https://youtube.com/watch?v=KiY9R93XA1g)  2011-11-03T00:41Z 813K followers, 83.6K engagements


"Class D Amplifier Tutorial An explanation of how class D amplifiers work and how to build your own 2x15W stereo amplifier. Click "show more" for the schematic and part numbers. Class D amp kit: https://bit.ly/312E3pI More electronics: http://www.afrotechmods.com/ Breadboard parts: TPA3122: http://octopart.com/tpa3122d2n-texas+instruments-11912477 1000uF: http://octopart.com/partsearch#q=EEU-FM1V102 33uH: http://octopart.com/12rs333c-murata-10572140 0.68uF: http://octopart.com/fk16x7r1h684k-tdk-21525577 Schematic: https://i.imgur.com/MITAXQ5.jpg If you are feeling extra generous bookmark this"  
[YouTube Link](https://youtube.com/watch?v=O1UagNkcxi4)  2014-06-02T00:25Z 813K followers, 764.5K engagements


"Voltage divider tutorial This video shows the basics of voltages dividers and how to build one. Power consumption considerations and equivalent series resistance issues are also discussed. More videos at http://www.afrotechmods.com/"  
[YouTube Link](https://youtube.com/watch?v=XxLKfAZrhbM)  2010-01-11T05:30Z 812K followers, 663.6K engagements


"Capacitor Replacement Tutorial Capacitance voltage ratings and polarity are explained. You can replace faulty caps on your circuit board and bring your electronics back to life Example of a high quality replacement capacitor: http://www.amazon.com/exec/obidos/ASIN/B076FQYZND/afromods-20 Check out my website for more electronics tutorials http://www.afrotechmods.com #Electronics #Capacitor #Engineering"  
[YouTube Link](https://youtube.com/watch?v=YCSNWi3UHf4)  2008-10-26T00:46Z 812K followers, 2.4M engagements


"Constant current power supply and laser / LED driver tutorial An explanation of what constant current sources are and how to use an LM317 to build a constant current power supply that can power strings of LEDs and laser diodes. LM317: http://amzn.to/2jvp5Vi Switch mode current sources: http://amzn.to/1BOQjUe Check out my webpage for more videos about electronics http://www.afrotechmods.com Light-emitting Diode (Invention) Current Source Electric Current (Dimension) Laser (Invention) Led Lights Electronic Engineering (Field Of Study) electronics circuit hacking DIY constant current electrical"  
[YouTube Link](https://youtube.com/watch?v=iuMngik0GR8)  2015-04-08T16:33Z 813K followers, 387.5K engagements


"Function Generator Tutorial: What is a Signal Generator / Function Generator The basics of function generators / signal generators. An LED dimmer circuit example is given. Example function generator: http://www.amazon.com/exec/obidos/ASIN/B073P6TKQC/afromods-20 Main webpage: http://www.afrotechmods.com"  
[YouTube Link](https://youtube.com/watch?v=mLKPwWGBtIw)  2008-11-03T02:55Z 810K followers, 258.5K engagements


"📡 Siglent SSA3032X Spectrum Analyzer Review & Experiments 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. ==========TABLE OF CONTENTS======== 0:00 Intro 0:33 Unboxing and discussion of inputs 1:24 Screen 1:59 Build quality fan noise user interface 5:35 AM and FM demodulation 6:18 Average noise measurements 9:11 Phase noise 9:46 Spurious readings and possible shielding issue 12:25 Amplitude accuracy 12:40 Tracking generator evaluation and experiments"  
[YouTube Link](https://youtube.com/watch?v=uA4SvTBCAXU)  2017-03-31T20:02Z 813K followers, 104.1K engagements


"Comparator tutorial & clapper circuit A tutorial on op-amp comparators and a demo circuit that lights up an LED when the sound volume reaches a preset threshold. Watch this video on peak detectors next http://www.youtube.com/watchv=ic_yEUV7Y3c More electronics at http://www.afrotechmods.com"  
[YouTube Link](https://youtube.com/watch?v=y0Q0ERSP24A)  2010-12-30T05:59Z 811K followers, 454.4K engagements


"This chip will RUIN your circuit This is a video about op-amp non-idealities including power supply rails output voltage swing input offset voltage slew rate and gain-bandwidth product. I also suggest several op amps that you could use instead of an LM741 because the LM741 has very poor performance by modern standards. Website: http://www.afrotechmods.com Twitter: https://x.com/afrotechmods Facebook: https://www.facebook.com/Afrotechmods/ 0:00 Introduction 0:47 Brief background on the [---] 1:23 People still teach op amps with the LM741 1:45 Inconvenient power supply voltages 2:10 Op amp output"  
[YouTube Link](https://youtube.com/watch?v=e67WiJ6IPlQ)  2025-04-01T16:24Z 813K followers, 214.8K engagements


"Why electrolytic capacitors are actually kinda crappy 💩 Electrolytic capacitors are common but knowledge of their limitations is uncommon. A demonstration is shown highlighting the difference in performance between electrolytic and ceramic capacitors in power supplies. Other topics discussed in the video: Electrolytic capacitor construction ceramic capacitors ESR ESL impedance curves why "0.1uF" and more. Webpage: http://www.afrotechmods.com Twitter: http://www.twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods #electronics #engineering #capacitor electronics"  
[YouTube Link](https://youtube.com/watch?v=WytU5uj78-4)  2018-03-16T19:04Z 813K followers, 633.2K engagements


"Siglent SDG6000X Arbitrary Waveform Generator Review A review of Siglent's SDG6052X 500MHz arbitrary waveform generator with the I/Q upgrade. Webpage: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ Siglent Waveform Generator Arbitrary AWG Function generator RF radio frequency electronics electrical engineering EE technician SDG6000X SDG6052X Arbitrary waveform generator Afrotechmods voltage volts electronic engineering electrical engineering 433Mhz FM AM Modulation Frequency Modulation Amplitude Modulation QAM 16-QAM"  
[YouTube Link](https://youtube.com/watch?v=Fzq68nXrWLM)  2018-03-16T17:03Z 813K followers, 59K engagements


"Arduino Servo Control: How to Make a Laser Turret with XOD A tutorial on what servos are how they work and how to control them. Then I build a laser turret using a pan-tilt servo kit and an Arduino Uno. The Arduino is programmed with XOD a free visual programming language. Download XOD: http://xod.io/utm_source=afrotech&utm_medium=youtube&utm_campaign=servos Another XOD tutorial: http://www.youtube.com/watchv=qxjLH_3US04 Hitec HS-311 servo: http://www.amazon.com/exec/obidos/ASIN/B0006O3WVE/afromods-20 Sub-micro servo pack: http://www.amazon.com/exec/obidos/ASIN/B07Q6JGWNV/afromods-20 Laser"  
[YouTube Link](https://youtube.com/watch?v=iH9_xtulyws)  2017-12-29T16:17Z 813K followers, 1M engagements


"Fun with 1.1GHz Potato chips I built a ring oscillator using a 1.125GHz [--] series logic inverter IC from Potato Semiconductor. It was fun. Main site: http://www.afrotechmods.com Potato Semi: http://www.potatosemi.com Twitter: http://twitter.com/afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ electronics electronics engineering electrical engineering logic chip logic IC integrated circuit inverter digital logic digital design engineering semiconductor [--] series logic hex inverter oscillator ring oscillator oscilloscope spectrum analyzer Potato semiconductor afrotechmods"  
[YouTube Link](https://youtube.com/watch?v=8rRRvgjLjZU)  2017-04-29T05:04Z 813K followers, 302.8K engagements


"📡 Siglent SSA3032X Spectrum Analyzer Review & Experiments 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. ==========TABLE OF CONTENTS======== 0:00 Intro 0:33 Unboxing and discussion of inputs 1:24 Screen 1:59 Build quality fan noise user interface 5:35 AM and FM demodulation 6:18 Average noise measurements 9:11 Phase noise 9:46 Spurious readings and possible shielding issue 12:25 Amplitude accuracy 12:40 Tracking generator evaluation and experiments"  
[YouTube Link](https://youtube.com/watch?v=uA4SvTBCAXU)  2017-03-31T20:02Z 813K followers, 104.1K engagements


"You can learn Arduino in [--] 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 [--] day trial & download one free title: http://www.audible.com/afrotechmods Example UNO kit: http://amzn.to/2mRjqLa Example UNO robot kit: http://www.amazon.com/exec/obidos/ASIN/B07KPZ8RSZ/afromods-20 (Amazon affiliate links) Website: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ If you are feeling extra generous bookmark this"  
[YouTube Link](https://youtube.com/watch?v=nL34zDTPkcs)  2017-03-17T19:58Z 813K followers, 10.4M engagements


"🔊 How to make an LM386 audio amplifier circuit How to use the popular LM386 class AB audio amplifier IC to build a simple mono [--] watt audio amplifier. It costs less than $3 in parts Sponsored by The Great Courses Plus. Get [--] free days at: http://ow.ly/8N2c307LfKL LM386s on Amazon: https://www.amazon.com/exec/obidos/ASIN/B01MUHBZ91/afromods-20 Circuit diagram: http://bit.ly/2kep7h9 Duke Nukem Theme by Ed Dekker: http://youtu.be/MzptQ4ZuTTI Additional music by http://www.bensound.com #Electronics #Engineering #Amplifier LM386 audio amplifier circuit electronics electronic electrical"  
[YouTube Link](https://youtube.com/watch?v=4ObzEft2R_g)  2017-01-17T16:40Z 813K followers, 720.6K engagements


"Basic Electricity - Power and watts 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 Twitter: http://twitter.com/afrotechmods Facebook: http://bit.ly/2cMrAeu electricity watts watt power light LED amp ampere volt voltage electrical electronics circuit electrical engineering afrotech afrotechmods resistor multimeter lamp electronics engineering electricity watts watt power light LED amp ampere volt voltage electrical electronics circuit electrical"  
[YouTube Link](https://youtube.com/watch?v=VSpB3HivkhY)  2016-11-30T03:01Z 813K followers, 744.8K engagements


"Basic Electricity - Resistance and Ohm's law A tutorial on the basics of electrical 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 circuit. [---] LEDs for $9: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20 [---] resistors for $9: http://www.amazon.com/exec/obidos/ASIN/B07QXP4KVZ/afromods-20 9V battery clips: http://www.amazon.com/exec/obidos/ASIN/B08SL9X2YC/afromods-20 Adjustable power supply: http://www.amazon.com/exec/obidos/ASIN/B08HYK2ZW3/afromods-20 (Amazon"  
[YouTube Link](https://youtube.com/watch?v=NfcgA1axPLo)  2016-11-07T23:38Z 813K followers, 2.7M engagements


"LED Basics A tutorial on the basics of using LEDs (light emitting diodes). Polarity forward voltage and current are discussed. [---] LEDs for $13: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20 [---] resistors for $12: http://www.amazon.com/exec/obidos/ASIN/B008MH97I4/afromods-20 Adjustable power supply: https://www.amazon.com/exec/obidos/ASIN/B08HYK2ZW3/afromods-20 (Amazon affiliate links) Previous video on volts: http://www.youtube.com/watchv=TBt-kxYfync Next video on resistors: http://www.youtube.com/watchv=NfcgA1axPLo Website: http://www.afrotechmods.com Twitter:"  
[YouTube Link](https://youtube.com/watch?v=Yo6JI_bzUzo)  2016-10-22T04:23Z 813K followers, 2.7M engagements


"🔌 Basic Electricity - What is voltage 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/watchv=8gvJzrjwjds Website: http://www.afrotechmods.com Twitter: http://twitter.com/afrotechmods Facebook: http://bit.ly/2cMrAeu #Physics #Engineering #Electronics electronics electricity voltage volts volt basic electricity physics joule coulomb energy potential energy electrical potential energy science engineering electrical electronics engineering electrical engineering power supply ampere amp"  
[YouTube Link](https://youtube.com/watch?v=TBt-kxYfync)  2016-10-03T16:59Z 813K followers, 1.4M engagements


"⚡ Don't build this 12V DC to 120V AC inverter circuit. A description of how a popular 12V DC to 120/240V AC inverter circuit works and its MANY limitations. Watch this video before you build inverter circuits you find online else you risk damaging your equipment Please visit my website http://www.afrotechmods.com for more high quality electronics tutorials. STOP ASKING ME FOR A BETTER INVERTER DESIGN IT ISN'T WORTH THE HASSLE JUST BUY ONE. inverter electronics circuit DC AC DC to AC mains inverter high voltage dangerous transformer lighting solar panel electricity volts amperes amps"  
[YouTube Link](https://youtube.com/watch?v=5QaKiXRa-n0)  2016-03-08T19:55Z 813K followers, 465.6K engagements


"Frequency Modulation tutorial & FM radio transmitter circuit This video explains what frequency modulation (FM) is and shows a simple low powered FM radio transmitter circuit you can build. It has a range of about [--] meters. Check out my webpage for more videos about electronics http://www.afrotechmods.com PCB: http://www.oshpark.com/shared_projects/WcqBnpXg Design files: http://www.afrotechmods.com/FMTransmitter.zip Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ electronics electrical engineering FM frequency modulation circuit PCB antenna modulation"  
[YouTube Link](https://youtube.com/watch?v=ZUxDXXBO3eA)  2015-12-19T21:38Z 813K followers, 275.4K engagements


"How to build a simple laser tachometer Did you know you can use an LED as a light sensor In this video I show you how to use this phenomenon to build a laser tachometer capable of measuring the RPM of mechanical devices. Professional laser tachometer on Amazon: http://www.amazon.com/exec/obidos/ASIN/B000VC8RSE/afromods-20 Check out my webpage for more electronic projects http://www.afrotechmods.com Tachometer Do It Yourself (Hobby) Electronics (Field Of Study) electronics Electronic Engineering (Field Of Study) circuit Light-emitting Diode (Invention) LED Laser (Invention) Laser Diode"  
[YouTube Link](https://youtube.com/watch?v=RfitqGLPCUY)  2015-08-16T00:33Z 813K followers, 254.2K engagements


"What is a zener diode A tutorial on zener diodes and how to use them as voltage clamps voltage regulators and how to create audio distortion circuits. [---] assorted zener diodes on Amazon for $10: http://www.amazon.com/exec/obidos/ASIN/B015D0B3B6/afromods-20 Check out my webpage for more videos about electronics http://www.afrotechmods.com Zener Diode diode zener voltage current Electronics (Field Of Study) Electronic Engineering (Field Of Study) engineering science circuit hacking zener diode tutorial Electrical Engineering Technology (Field Of Study) Electrical Engineering (Industry)"  
[YouTube Link](https://youtube.com/watch?v=xSQHfsHTS88)  2015-06-14T20:54Z 813K followers, 1.2M engagements


"Microcontroller on FIRE This PIC was rated for [---] volts. I gave it [--]. Now I need new power leads. More fun at http://www.afrotechmods.com Microcontroller (Computer Processor) microcontroller fire flame explosion electronics circuit Burn Burning semiconductor Electrical Engineering (Industry) electrical engineering Electrical Engineering Technology (Field Of Study) Microchip Technology (Business Operation) microchip Microcontroller (Computer Processor) microcontroller fire flame explosion electronics circuit Burn Burning semiconductor Electrical Engineering (Industry) electrical engineering"  
[YouTube Link](https://youtube.com/watch?v=IuLdSJvltgo)  2015-06-13T02:40Z 813K followers, 62.4K engagements


"Diodes MELTING I had some leftovers from the upcoming zener diode video. So I shoved 16V/12A through them. Website: http://www.afrotechmods.com/ electronics circuit hardware electrical engineering fire zener diode zener diode explosion spark melted glass Burn Burning Flame electronics circuit hardware electrical engineering fire zener diode zener diode explosion spark melted glass Burn Burning Flame"  
[YouTube Link](https://youtube.com/watch?v=sYdcNZHEZow)  2015-06-13T00:20Z 813K followers, 69.5K engagements


"What is a schottky diode A tutorial covering the advantages and disadvantages of schottky diodes over regular silicon diodes. [---] diodes for $8 on Amazon: http://www.amazon.com/exec/obidos/ASIN/B07BTY8FD2/afromods-20 Webpage: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ Schottky Diode Schottky Barrier Physics (Field Of Study) electronics circuit Volt (Unit Of Potential) Ampere (Unit Of Electric Current) semiconductor diode Electrical Engineering (Industry) Electronic Engineering (Field Of Study) Oscilloscope (Invention)"  
[YouTube Link](https://youtube.com/watch?v=bXEyCf1P0UU)  2015-05-29T18:29Z 813K followers, 2.3M engagements


"Constant current power supply and laser / LED driver tutorial An explanation of what constant current sources are and how to use an LM317 to build a constant current power supply that can power strings of LEDs and laser diodes. LM317: http://amzn.to/2jvp5Vi Switch mode current sources: http://amzn.to/1BOQjUe Check out my webpage for more videos about electronics http://www.afrotechmods.com Light-emitting Diode (Invention) Current Source Electric Current (Dimension) Laser (Invention) Led Lights Electronic Engineering (Field Of Study) electronics circuit hacking DIY constant current electrical"  
[YouTube Link](https://youtube.com/watch?v=iuMngik0GR8)  2015-04-08T16:33Z 813K followers, 387.5K engagements


"Hard drive. SPEAKERS How to turn an old hard drive into a speaker More HDD speaker videos: http://www.youtube.com/Afrotechmods2 Website: http://www.afrotechmods.com/ hard drive Hard Disk Drive (Invention) hard disk HDD computer speaker electronics circuit amplifier solder hack Sound Audio loudspeaker DIY hard drive Hard Disk Drive (Invention) hard disk HDD computer speaker electronics circuit amplifier solder hack Sound Audio loudspeaker DIY"  
[YouTube Link](https://youtube.com/watch?v=rVPjQou42i8)  2015-03-02T04:55Z 813K followers, 169.8K engagements


"Keysight 3000T 1GHz Oscilloscope Review Keysight sent me a fully loaded MSO-X 3104T touch screen mixed signal oscilloscope to review Product page: http://www.keysight.com/en/pc-2475195/infiniivision-3000t-x-series-oscilloscope Keysight's Youtube channel: http://www.youtube.com/user/keysight/ Website: http://www.afrotechmods.com oscilloscope electronics Agilent Technologies (Business Operation) agilent Keysight Keysight Technologies 3000T touch screen test equipment electrical engineering engineering Technology (Industry) Electrical Engineering (Industry) Oscilloscope (Invention) Electronics"  
[YouTube Link](https://youtube.com/watch?v=9GPvQ9-sR0E)  2015-02-10T00:53Z 813K followers, 48.2K engagements


"Raspberry Pi overclocking failure 12V lead acid batteries are useful for powering many things. But not Raspberry Pis. Check out my other videos for more fun with electronics http://www.afrotechmods.com Raspberry Pi (Computer) Overclocking (Hobby) computer explosion electronics sparks fun fire funny joke Comedy Jokes technology circuit raspberry pi overclocking Prank smoke Raspberry Pi (Computer) Overclocking (Hobby) computer explosion electronics sparks fun fire funny joke Comedy Jokes technology circuit raspberry pi overclocking Prank smoke"  
[YouTube Link](https://youtube.com/watch?v=lYf9HK-rI1s)  2014-12-28T21:35Z 813K followers, 193.3K engagements


"How an accelerometer works A simplified explanation of how a capacitive MEMS accelerometer works. Website: http://www.afrotechmods.com/ Accelerometer math: http://www2.usfirst.org/2005comp/Manuals/Acceler1.pdf Microelectromechanical Systems (Field Of Study) Accelerometer (Measuring Instrument) accelerometer sensor electronics circuit electrical engineering Electronics (Field Of Study) Electronic Engineering (Field Of Study) MEMS silicon microscope Gadget Technology capacitor resistor Microelectromechanical Systems (Field Of Study) Accelerometer (Measuring Instrument) accelerometer sensor"  
[YouTube Link](https://youtube.com/watch?v=i2U49usFo10)  2014-12-24T04:32Z 813K followers, 512.6K engagements


"🔋 How to choose a battery: A battery chemistry tutorial A beginner's guide to different battery chemistries and how to choose the right battery for your project. More videos at http://www.afrotechmods.com Battery chemistry summary: http://i.imgur.com/4SJNKPN.png Panasonic Eneloop low self discharge NiMH batteries: http://www.amazon.com/exec/obidos/ASIN/B00JHKSL1O/afromods-20 Lithium protection circuits: http://shrsl.com/e9pf More info on the NiCd memory effect versus phenomenon perceived as the memory effect: http://www.hardwaresecrets.com/article/The-Truth-About-NiCd-Batteries/292/2"  
[YouTube Link](https://youtube.com/watch?v=saxYilLJ7yw)  2014-12-14T21:58Z 813K followers, 224.1K engagements


"🔋 How to charge a LiPo battery with a power supply How to charge a single cell lithium ion or lithium polymer battery with an adjustable current limiting bench power supply. Adjustable power supply on Amazon: http://www.amazon.com/exec/obidos/ASIN/B09BFDZ85C/afromods-20 Multi chemistry charger: http://www.amazon.com/exec/obidos/ASIN/B00466PKE0/afromods-20 Check out my website for more videos about electronics: http://www.afrotechmods.com Patreon and more http://www.afrotechmods.com/support/support.htm Lithium Polymer Battery (Battery Cell Type) Lithium-ion Battery (Battery Cell Type) LiPo"  
[YouTube Link](https://youtube.com/watch?v=0yhbof6_s64)  2014-12-05T00:06Z 813K followers, 475.9K engagements


"🔋 Battery amp-hour watt-hour and C rating tutorial A guide to battery capacity measurement including amp-hours watt-hours C ratings and more. Website: http://www.afrotechmods.com/ The Amp Hour podcast: http://www.theamphour.com/ Ampere-hour (Unit Of Charge) Ampere (Unit Of Electric Current) amp hour watt hour capacity battery charge electronics electrical engineering Kilowatt Hour (Unit Of Energy) C rating discharge discharge curve circuit Robot Battery (Invention) Ampere-hour (Unit Of Charge) Ampere (Unit Of Electric Current) amp hour watt hour capacity battery charge electronics electrical"  
[YouTube Link](https://youtube.com/watch?v=cxkVxi9P0EA)  2014-09-25T17:39Z 813K followers, 1.7M engagements


"DC-DC Boost converter tutorial How boost converters work and how to build a 50W adjustable boost converter circuit. Want more videos like this Visit http://www.afrotechmods.com Parts list: LT1370HV: http://octopart.com/lt1370hvct7%23pbf-linear+technology-532702 Electrolytic capacitors: http://octopart.com/eeu-fm1h471-panasonic-208645 Input and output ceramic caps: http://octopart.com/partsearch#q=UMK325BJ106MM-T Schottky diode: http://octopart.com/stps5l60-stmicroelectronics-334357 10uH inductor: http://octopart.com/aiur-06-100k-abracon-18619318 Potentiometer:"  
[YouTube Link](https://youtube.com/watch?v=wJU7AJgERG8)  2014-09-15T01:09Z 813K followers, 769.7K engagements


"Adjustable switch mode power supply tutorial 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 ================================================= Parts: LM2678T-ADJ: http://octopart.com/lm2678t-adjnopb-texas+instruments-15290279 Input electrolytic cap: http://octopart.com/eeu-fm1h221-ecg-208642 Output electrolytic cap: http://octopart.com/eeu-fr1c102b-panasonic-18987619 Input and output ceramic caps: http://octopart.com/partsearch#q=UMK325BJ106MM-T"  
[YouTube Link](https://youtube.com/watch?v=QR8qsygs1Kw)  2014-08-25T15:12Z 813K followers, 281.1K engagements


"Switch mode power supply tutorial: DC-DC buck converters 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/781DMaFT Schematic: https://i.imgur.com/iwWnvXv.jpg Buck Converter Switched-mode Power Supply DC-to-DC Converter Power Supply Unit electronics circuit science power supply Robot Buck Converter Switched-mode Power Supply DC-to-DC Converter Power Supply Unit electronics circuit science power supply Robot"  
[YouTube Link](https://youtube.com/watch?v=CEhBN5_fO5o)  2014-08-18T17:38Z 813K followers, 1M engagements


"LM317 magic smoke I love the smell of silicon in the morning. Website: http://www.afrotechmods.com Smoke LM317 Magic Smoke electronics explosion fire bang Boom burn burning Flame Smoke LM317 Magic Smoke electronics explosion fire bang Boom burn burning Flame"  
[YouTube Link](https://youtube.com/watch?v=fyQVc2YVpX4)  2014-07-10T04:46Z 813K followers, 106.7K engagements


"Class D Amplifier Tutorial An explanation of how class D amplifiers work and how to build your own 2x15W stereo amplifier. Click "show more" for the schematic and part numbers. Class D amp kit: https://bit.ly/312E3pI More electronics: http://www.afrotechmods.com/ Breadboard parts: TPA3122: http://octopart.com/tpa3122d2n-texas+instruments-11912477 1000uF: http://octopart.com/partsearch#q=EEU-FM1V102 33uH: http://octopart.com/12rs333c-murata-10572140 0.68uF: http://octopart.com/fk16x7r1h684k-tdk-21525577 Schematic: https://i.imgur.com/MITAXQ5.jpg If you are feeling extra generous bookmark this"  
[YouTube Link](https://youtube.com/watch?v=O1UagNkcxi4)  2014-06-02T00:25Z 813K followers, 764.5K engagements


"H Bridge Motor Speed Controller Tutorial An explanation of H bridges (a type of motor control circuit). I also show you how to build a bidirectional motor speed controller. Website: http://www.afrotechmods.com ----===Click "Show More"===---- Parts: NE555 timer: https://octopart.com/searchq=NE555&start=0 N-channel MOSFET: https://octopart.com/searchq=psmn022-30PL.127&start=0 P-channel MOSFET: https://octopart.com/searchq=FQP27P06&start=0 If you are feeling extra generous bookmark this link and use it as your Amazon home page:"  
[YouTube Link](https://youtube.com/watch?v=iYafyPZ15g8)  2014-04-12T05:17Z 813K followers, 647.4K engagements


"How to protect circuits from reversed voltage polarity How to use diodes schottky diodes and P-FETs to protect your circuits from reversed voltage/power connections. Website: http://www.afrotechmods.com/ Tutorial electronics electric circuit P-FET MOSFET Diode protection P-channel semiconductor voltage polarity Field-effect Transistor Tutorial electronics electric circuit P-FET MOSFET Diode protection P-channel semiconductor voltage polarity Field-effect Transistor"  
[YouTube Link](https://youtube.com/watch?v=IrB-FPcv1Dc)  2011-12-02T07:03Z 813K followers, 2.4M engagements


"Cosview MV200UM USB microscope review Cosview MV200UM USB microscope review. Review sample provided by Saelig: http://www.saelig.com/product/VI021.htm Stand: http://www.saelig.com/product/VA004.htm Website: http://www.afrotechmods.com USB digital microscope review Cosview MV200UM microscopic macro camera USB digital microscope review Cosview MV200UM microscopic macro camera"  
[YouTube Link](https://youtube.com/watch?v=2te13V_YsPU)  2011-11-19T02:40Z 813K followers, 212.7K engagements


"OWON SDS6062 oscilloscope review OWON SDS6062 oscilloscope review. Review sample provided by Saelig: http://www.saelig.com/category/PSBEB100.htm Website: http://www.afrotechmods.com OWON SDS6062 SDS [----] oscilloscope review electronics engineering electrical measurement test OWON SDS6062 SDS [----] oscilloscope review electronics engineering electrical measurement test"  
[YouTube Link](https://youtube.com/watch?v=KiY9R93XA1g)  2011-11-03T00:41Z 813K followers, 83.6K engagements


"Basic Electricity - What is an amp What is electrical current What are amps Find out in this video Next video on voltage: http://www.youtube.com/watchv=TBt-kxYfync Website: http://www.afrotechmods.com Twitter: http://twitter.com/afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ #Physics #Science #Engineering #Electronics Electricity amps ampere Electricity amps ampere"  
[YouTube Link](https://youtube.com/watch?v=8gvJzrjwjds)  2011-10-24T04:42Z 813K followers, 2.6M engagements


"RGB LED under microscope Clear shots of all [--] dies in an RGB LED. More at http://www.afrotechmods.com RGB Red Green Blue LED diode Light-emitting Diode LED Lamp microscope semiconductor die RGB Red Green Blue LED diode Light-emitting Diode LED Lamp microscope semiconductor die"  
[YouTube Link](https://youtube.com/watch?v=7vIKspmEeLw)  2011-10-20T07:44Z 813K followers, 67.5K engagements


"White LED under microscope There are [--] dies on every white LED in this LED module. Webpage: http://www.afrotechmods.com White LED diode Light-emitting Diode LED Lamp microscope electronics electrical semiconductor die White LED diode Light-emitting Diode LED Lamp microscope electronics electrical semiconductor die"  
[YouTube Link](https://youtube.com/watch?v=6TGsAK7tiq0)  2011-10-20T07:43Z 813K followers, 63.9K engagements


"Inductive spiking and how to fix it 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. Example diodes on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00W17LOBO/afromods-20 Check out my webpage for more handy electronics tutorials http://www.afrotechmods.com inductive spike diode inductor voltage electronic clamp flyback freewheeling catch EMF inductive spike diode inductor voltage electronic clamp flyback freewheeling catch EMF"  
[YouTube Link](https://youtube.com/watch?v=LXGtE3X2k7Y)  2011-09-21T06:25Z 813K followers, 657.1K engagements


"Green LED turns red Normally rated for 20mA. When 100mA is flowing it turns from green to yellow. At 150mA it slowly and permanently turns yellowy-orange. At 200+mA it permanently turns red and soon fails. More at http://www.afrotechmods.com green red LED electronic explode burn fail Electronics (Field Of Study) Light-emitting Diode (Invention) green red LED electronic explode burn fail Electronics (Field Of Study) Light-emitting Diode (Invention)"  
[YouTube Link](https://youtube.com/watch?v=foNi-keKGs4)  2011-08-28T23:09Z 813K followers, 509.7K engagements


"Resistor burning slowly A burning resistor sped up by 3x. More fun at http://www.afrotechmods.com resistor burning slowly fire electric electronic explode macro Burn resistor burning slowly fire electric electronic explode macro Burn"  
[YouTube Link](https://youtube.com/watch?v=MUfMPjMAwx8)  2011-08-28T22:35Z 813K followers, 1.5M engagements


"Blue [----] LED under microscope Random video. The colour changes a bit as the current gets turned up. More at http://www.afrotechmods.com blue led [----] SMT SMD microscope microscopic close up macro electronics Light-emitting Diode (Invention) blue led [----] SMT SMD microscope microscopic close up macro electronics Light-emitting Diode (Invention)"  
[YouTube Link](https://youtube.com/watch?v=h2UWAmcjtuE)  2011-08-28T21:05Z 813K followers, 89.8K engagements


"RAM overclocking failure DDR2 takes 12V. right Check out my webpage all about electronics: http://www.afrotechmods.com fire explosion RAM DDR DDR2 DIMM computer blow up Random-access Memory Overclocking (Hobby) fire explosion RAM DDR DDR2 DIMM computer blow up Random-access Memory Overclocking (Hobby)"  
[YouTube Link](https://youtube.com/watch?v=Gw-rUCwLoQ0)  2011-08-25T23:13Z 813K followers, 10.7M engagements


"Passive low pass RL filters 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 filtered out. More videos at http://www.afrotechmods.com Music credit: http://soundcloud.com/bf-recordings/bfree-db003-harsher-the-cube passive RL low pass filter inductor inductance audio crossover woofer speaker electromagnetic impedance electronic electric circuit LC Low-pass Filter Electronic Filter passive RL low pass filter inductor inductance audio crossover woofer"  
[YouTube Link](https://youtube.com/watch?v=7jRl_XtyRCo)  2011-08-24T05:01Z 813K followers, 371.2K engagements


"Inductance basics 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: http://www.amazon.com/exec/obidos/ASIN/B071WNNYQT/afromods-20 More tutorials: http://www.afrotechmods.com/ inductor inductance electromagnetic field magnetic impedance electronic circuit low pass filter LC inductor inductance electromagnetic field magnetic impedance electronic circuit low pass filter LC"  
[YouTube Link](https://youtube.com/watch?v=VSMGnmQApA0)  2011-08-24T04:59Z 813K followers, 658.9K engagements


"Inductor basics - What is an inductor 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. Inductors playlist: https://www.youtube.com/watchv=NgwXkUt3XxQ&list=PLC0303DF928C9F4F0 Webpage: http://www.afrotechmods.com Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ inductor coil inductance electromagnetic field diy electronic magnetic impedance science circuit low pass filter LC inductor coil inductance electromagnetic"  
[YouTube Link](https://youtube.com/watch?v=NgwXkUt3XxQ)  2011-08-24T04:53Z 813K followers, 2.1M engagements


"⚡ "It's not the volts that kill you it's the amps" ⚡ I debunk the popular myth that it's not the volts that kill you it's the amps. Basically the volts directly determine the current flowing through your body so the phrase is stupid and dangerously misleading. You can support the production of more videos like these by visiting: http://www.afrotechmods.com volts amps safety electrocution ohms law electric electronics kill electrical resistance taser Volt (Unit Of Potential) Ampere (SI Base Unit) volts amps safety electrocution ohms law electric electronics kill electrical resistance taser"  
[YouTube Link](https://youtube.com/watch?v=8xONZcBJh5A)  2011-07-21T04:48Z 813K followers, 1.5M engagements


"4 wire kelvin resistance measurement tutorial How to use the [--] wire (Kelvin) resistance measurement technique to measure tiny resistances (in the milliohm range) using only a cheap multimeter Webpage: http://www.afrotechmods.com wire 4-wire kelvin resistance measurement tutorial milliohm volt amp electronics ohms educational electrical engineering wire 4-wire kelvin resistance measurement tutorial milliohm volt amp electronics ohms educational electrical engineering"  
[YouTube Link](https://youtube.com/watch?v=0vMvCVyOp9g)  2011-07-06T07:04Z 813K followers, 143.8K engagements


"LM317 Adjustable Voltage Regulator Tutorial A tutorial on the LM317 voltage regulator. Shows you how to make a [----] to 25V adjustable voltage supply or choose any other output voltage you want. An example of a fan speed controller is shown. LM317s on Amazon: https://www.amazon.com/exec/obidos/ASIN/B07T5ZHY63/afromods-20 Want more easy to follow videos about electronics Check out my website http://www.afrotechmods.com LM317 voltage regulator adjustable LM317T LM317AT circuit diagram tutorial fan speed controller electronics diy Voltage Regulator LM317 voltage regulator adjustable LM317T"  
[YouTube Link](https://youtube.com/watch?v=IjJWWGPjc-w)  2011-04-18T05:05Z 813K followers, 1.6M engagements

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