Class D Amplifier Tutorial!

Ғылым және технология

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: bit.ly/312E3pI
More electronics: www.afrotechmods.com/
Breadboard parts:
TPA3122:
octopart.com/tpa3122d2n-texas+...
1000uF:
octopart.com/partsearch#!?q=EE...
33uH:
octopart.com/12rs333c-murata-1...
0.68uF:
octopart.com/fk16x7r1h684k-tdk...
Schematic:
i.imgur.com/MITAXQ5.jpg
If you are feeling extra generous, bookmark this link and use it as your Amazon home page:
www.amazon.com/?_encoding=UTF8...
If you do that, I get a percentage of everything you buy, and you don't have to spend an extra dime!

Пікірлер: 838

  • @Afrotechmods
    @Afrotechmods6 жыл бұрын

    Interested in learning about wireless power? Subscribers can get up to 80% off my course Wireless Power to the People - Wireless Charging 101 on udemy using the coupon code "KZread" www.udemy.com/wireless-power-to-the-people-wireless-charging-101/?couponCode=KZread

  • @gigigigiotto1673

    @gigigigiotto1673

    5 жыл бұрын

    excuse me sir, do you now the THD of the amplifier at 12v with 4ohm speaker?

  • @quixkiwi5337

    @quixkiwi5337

    5 жыл бұрын

    All right, so what you are trying to say is this, if one wants quality sound go class a or a/b, and if one wants dual ch crap go class d. ps. class d is also internally biased with a central common ground, thus no attempt should ever be made, unwittingly OR ON PURPOSE to jump (mono) both output stereo channels - (as they are NOT genuine stereo, but rather only dual mono "twin" channels) into a mono pa system, otherwise your class d outputs will instantly fry themselves internally. Hence why genuine audiophiles - prefer correctly orientated class a & class a/b amplifiers (the truly push-pull genuine "stereo" with their common-earth grounded-return 2ch STEREO outputs). Because these cannot be screwed when anyone attempts to common BOTH L+ & R+ outputs together for a single pa mono speaker - as the two outputs are able to be thus externally connected as if one instead of two channels, utilising ONLY ONE of the two "'internally-connected" common-earth grounded-return (-) negatives - of either of both channels. That - old but extremely efficient system MAY have appeared to run as a low power amplifier (compared to a similar rated class d) but only the push-pull, common-earth grounded-return amplifiers are able to be thus interconnected for either stereo 2ch or mono 1ch, without any special "bridging" switching system, PLUS will allow a totally different "style" of connection called a DELTA configuration. ie: by connecting the two NORMAL R/L outputs to the common-earth grounded-return to achieve 2ch stereo whilst SIMULTAINIOUSLY using R+ & L+ across a third speaker, to obtain the true differential DELTA MODE - HIDDEN THIRD CHANNEL, one instantly has an old school, (pre-digital) total surround sound system - utilising the full 100% "drivable output" - of the so-called low powered class a & class a/b, whilst actually running the amp output to a much higher power rating, with far less wasted energy lost internally - thereby running the amp cooler for any given spl level, that just 2ch operation outputs. Been there, done that - triple-channeled any normal 2ch stereo output (of old school amps), thereby delivering way higher spl levels, from the so-called low power of a push-pull 2ch, thus utilising 100% of their actual output power, not just the57.7% across 2ch/2speaker stereo outputs - and have proved this method, as totally efficient since 1965. However- that isn't the b-all end-all of delta connected 2ch stereo outputs, from old school analogue class a & class a/b amps by any stretch of the imagination, having tested upwards of 25.7 ch systems, using that basic DELTA system, from really cheap amps, In 2003, just for the sheer hell-of-it, I deliberately bashed together a 7.3.1 super reverb sub-sub system with 25 completely unrelated oddment impedance speakers, being speakers source from house and car systems, through to pulling speakers out of dumped tv's and even an oddball from an old valve radio, gaining (on discovery) far more power in spl from a SINGLE 300w 2ch stereo amp, than a professional sound competition competitor achieved at an organised public sound-off, who used a 2,400w 2ch amp normally (into a basic 2ch system of what eventuated as a balanced 2ch - but an unbalanced DELTA power output). So - in reality - a class d - for me, is a small puff of white smoke and a permanent "forever-after" no-go amp. See? No - I mean "see" ... kzread.info/dash/bejne/h5ZktZqehMzQoqQ.html And then watch - ten lights flash and pulsate whilst being FED 2ch stereo TAPE CASSETTE PLAYED musical sound - to flash at different rates, (speeds/tempos/call-it-what-you-want) all ten little lights, being powered by the actual current (being the running sinusoidal music currents - from directly driven speaker coil circuits) which then visibly show the completely different audio analogue channels that would "normally be sent" into TEN speakers in a "decagon-o'phonic" system (instead of just driving ten filament globes to full brightness individually). re: kzread.info/dash/bejne/gGpoydCIkcKTcdo.html TEN completely different channels of surround "stereo" obtained from the two (2) NORMAL SPEAKER "raw" GENUINE common-grounded earth-return (proper-stereo) outputs, from a class AB amp You'll never get any class D dual-mono 2ch amp (a-so-called-stereo, but in reality a dual mono) with it's internally-grounded internally bridged ISOLATED "high" speaker outputs (that cannot be EXTERNALLY interconnected OR grounded "for mono-PA use, as that is electrically impossible). Now tell me which is better?

  • @gigigigiotto1673

    @gigigigiotto1673

    5 жыл бұрын

    @@quixkiwi5337 damn, that' s long!

  • @JjMn1000

    @JjMn1000

    3 жыл бұрын

    Yes!

  • @omsingharjit

    @omsingharjit

    3 жыл бұрын

    6:10 i always confused by that transistors which has more then one of Base , Collector or emitter in single symbol what it's mean can i buy such with many collector pin in single transistor ?

  • @greatscottlab
    @greatscottlab10 жыл бұрын

    Nicely explained. Great humour. Stay awesome!

  • @Afrotechmods

    @Afrotechmods

    10 жыл бұрын

    Great name!

  • @dfsafadsDW

    @dfsafadsDW

    9 жыл бұрын

    Afro and gr8 scott rule :)

  • @TheSupertecnology

    @TheSupertecnology

    6 жыл бұрын

    Ok so... when are you doing like a really cool video together? Man that would be so epic!

  • @onlyvinod56

    @onlyvinod56

    5 жыл бұрын

    Hey great scott ..... I am a subscriber of your channel. Your videos are great.

  • @electrosound4595

    @electrosound4595

    5 жыл бұрын

    @@onlyvinod56 I m also

  • @nukesaway4806
    @nukesaway48068 жыл бұрын

    You are a gateway to electronics for young people.

  • @betlejuice247

    @betlejuice247

    7 жыл бұрын

    Nukes Away I agree.

  • @betlejuice247

    @betlejuice247

    7 жыл бұрын

    Wil Badillo I'm not young myself but he makes it interesting enough for kids to understand.

  • @joshuabradshaw5270
    @joshuabradshaw52709 жыл бұрын

    Im an assembler and no one i work with can answer any of these questions except the engineers ( who are always too busy). This channel is REALLY helping my grasp on circuits. thank you for taking the time to do this! Its awesome and i recommend it to everyone i work with.

  • @TheEpistemicOne
    @TheEpistemicOne8 жыл бұрын

    As a former teacher I've got to give you props. Concise, interesting, and funny to boot. Got my vote. I'm going to enjoy learning from your channel for sure.

  • @executorarktanis2323

    @executorarktanis2323

    Жыл бұрын

    Hi as a student under going analog design circuit lectures i want to learn how do I calculate or more or like optimize designing a amplifier or anything related to transistors or mosfets

  • @moltam99
    @moltam999 жыл бұрын

    Wow. Your channel is one of the best electronics themed ones out there. I really like that you gave explanations in the schematic regarding the purpose of the different caps. It helps me a lot to get a better understanding of the schematic. Thanks and keep it up!

  • @Racingisgood
    @Racingisgood10 жыл бұрын

    I'm glad to see you're doing videos again, one of the few people on KZread that does a fantastic job at it. Best - Transformer tutorial - "last of all, remove all wire cutters from the area" brilliant!

  • @ablinkin1
    @ablinkin110 жыл бұрын

    I have been a hobbyist for years but never was able to understand some concepts just reading about them. Your videos really help explain and clarify things and I have been able to make some fun things because of them!! Thanks for your videos!!

  • @MrSmartguy0
    @MrSmartguy010 жыл бұрын

    Its awesome to see you are making videos again. I remember learning most of what I know about electronics from your older videos! Keep making these, they are great!

  • @crunchyeater
    @crunchyeater6 жыл бұрын

    Love your stuff, man. I'm an Electrical Engineering student and this is giving me a lot of encouragement to survive my classes. Keep it up!

  • @Linrox
    @Linrox9 жыл бұрын

    I love watching and learning from your video's. You have the highest grade electronic tutorials on you tube maybe even the net. You explain things in a way that everybody can understand and even a little humorous at times. Would love to see more videos.

  • @Thaddeus3rd
    @Thaddeus3rd9 жыл бұрын

    Wow I've not burned through this many youtube videos in quite awhile. You've got the most engaging video format that I've ever seen regarding electronics! A true purveyor of KZread University!

  • @Tomazack
    @Tomazack8 жыл бұрын

    This is a very good explanation. I have never really understood how a Class D operates, but now it makes sense. Thank you, and keep up the brilliant work!

  • @cawa72
    @cawa7210 жыл бұрын

    I am so glad you're back! You and Dave Jones make the best videos about electronics!

  • @gfffghccddstty
    @gfffghccddstty8 жыл бұрын

    Your channel is an excellent source of knowledge of basic electrical engineering applications. I remembered a lot of things and their applications, and also learned a lot, what I want to embody. Currently im at 4th year in university, and my current knowledge in electrotechnics are highly different in positive way from 3th year and one of the reasons is your channel. Thank you, greetings from Russia!

  • @jkuebler89
    @jkuebler895 жыл бұрын

    Yours are some of my favorite electronics videos on the KZreads. Informative with a side of humor. Thanks for all you do brother.

  • @Tex777_
    @Tex777_9 жыл бұрын

    Thanks so much for this video. Probably one of the most succinct explanations of Class D amps I've seen. And really all your explanations are to the point and quite good!

  • @mranubhav100
    @mranubhav1008 жыл бұрын

    The best tutorial I seen in some time. Well one of the best(Otherwise it's just simply neglecting other KZreadr's contribution.) But still better than the most. A big thumbs up. Keep up the good work.

  • @4n2earth22
    @4n2earth227 жыл бұрын

    Encouraging comment: Great job! I very much enjoy the rush of new synapses forming while watching your vids. Keep up the good work! You are making this universe a much better place.

  • @ChristakyMe
    @ChristakyMe10 жыл бұрын

    It's great to have you back these past couple of months! Keep it coming!

  • @KillerZero259
    @KillerZero2599 жыл бұрын

    Just bookmarked the Amazon link to help you get some commission!! Wish I knew about this before Christmas shopping! Videos are great! please continue to make more!

  • @Afrotechmods

    @Afrotechmods

    9 жыл бұрын

    Thank you!

  • @Regular6782
    @Regular678210 жыл бұрын

    Great video mate, one of the best tutorials I have seen on youTube. Well explained for everyone and no useless information. Thanks for putting this up.

  • @mrmacman2u
    @mrmacman2u7 жыл бұрын

    Another fantastic tutorial. Been following your stuff for years and have never stopped loving them! Miss when you had more humor in them (like your transformer tutorial), but I get it, these are educational, not off the wall random stuff. Keep being awesome!

  • @ejcheck
    @ejcheck9 жыл бұрын

    Nice video. does much to help explain CL D amps. And thank you for discussing the square wave/distortion issue. I keep coming across videos extolling the virtues of CL D in home systems and trying to show the volume levels you can obtain but ignore the distortion issue.

  • @GizmoTheGreen
    @GizmoTheGreen10 жыл бұрын

    Nice to see you're back in action! Saw a buttload of your vids about a year ago and didn't subscribe cause I thought you quit, happy seeing you on, subscribed! :)

  • @jeanphelipperamosdeoliveir711
    @jeanphelipperamosdeoliveir7118 жыл бұрын

    By far the best lecture for young people about Class - D amps. Actually, I never got to understand this stuff completely until now :D Thanks man I will share amongst my friends!

  • @simaykazc1508
    @simaykazc15086 жыл бұрын

    I read a paper on a scientific magazine about this for 2 days along but this video speeds up my understanding like a rocket !! many thanks !

  • @Forest34151
    @Forest341519 жыл бұрын

    I'm a GCSE Electronics student -well i was was, i had my final exam a few weeks ago- and i find all of your videos both really helpful with what i needed to understand but also has pretty much driven me to want to do A Level Electronics. Your video on PWM, for example made me go and make a simple PWM circuit in our workshop and it worked! So again thanks so much for these videos and keep going. They're awesome!!!!!

  • @Forest34151

    @Forest34151

    9 жыл бұрын

    sorry for the crossed through bit dude i didnt know i did that.

  • @Ucceah
    @Ucceah9 жыл бұрын

    i love how you are honest about that amazon link, rather than "suggesting" something, like so many youtubers do with audible.

  • @hellterminator

    @hellterminator

    7 жыл бұрын

    Since *everyone* is doing that with Audible, I'd say it's part of the contract. Amazon affiliate link is an entirely different beast.

  • @uberDoward
    @uberDoward10 жыл бұрын

    Of everyone I follow, these are the only videos that I get REALLY excited about. LOVE your videos!!

  • @agelectronics1
    @agelectronics18 жыл бұрын

    I think the fact that you read all of you comments is awesome!

  • @Afrotechmods

    @Afrotechmods

    8 жыл бұрын

    +AG Electronics Thanks!

  • @stephensparrow2142
    @stephensparrow21429 жыл бұрын

    Very professional and informative. You have a good voice for this type work. Liked it very much.

  • @1959Berre
    @1959Berre9 жыл бұрын

    Well done. Good script. Clear voice. Fine pronounciation. To the point. And funny.

  • @user-wq1nm4lc7q
    @user-wq1nm4lc7q4 жыл бұрын

    Thats the answer i was looking for..... Why not class D everywhere... You replied promptly....thak you. Your appeal to support is very genuine and I decided to support

  • @StereoBucket
    @StereoBucket10 жыл бұрын

    Damn it is nice to see you come back after 2 years. Your videos are epic.

  • @brassman5
    @brassman510 жыл бұрын

    You are an excellent teacher. I'm so glad to see you making videos again!

  • @AliMirjamali
    @AliMirjamali10 жыл бұрын

    It is very nice to have you back :D

  • @reverend2010
    @reverend201010 жыл бұрын

    It's hard to find teachers that can organize their lesson to make sense to new people. You're doing an amazing job of it, definitely using your amazon link. And keep it up with the basics, applications, and go a little more in depth in maybe a follow up.

  • @Therionized
    @Therionized7 жыл бұрын

    thanks for these videos. Has helped me a lot to understand basic electronics and other useful component functions such as this class-D amp. Being in a very semiconductor oriented team with not enough knowledge (even if you are in the business side) is very frustrating. you sir have helped me cope with that limitation and learn more every day I click on one of your videos. Cheers!

  • @mrjohhhnnnyyy5797
    @mrjohhhnnnyyy579710 жыл бұрын

    Great! I was waiting for this video since i saw a teaser for it. Especially like your explanations, really easy to understand.

  • @FamilienSoelberg
    @FamilienSoelberg10 жыл бұрын

    Fantastic video. Newer knew that class D amps was functionally what I was doing in software when I was programming an 8 bit sound driver on a 1 bit port in the early 90'. The switching frequency was only 16 Khz.

  • @kevinking7414
    @kevinking741410 жыл бұрын

    I dont even know what any of that means but your videos are so cool i listen to them anyway! Cant wait to build it soon.

  • @PanzarMetal
    @PanzarMetal10 жыл бұрын

    Afrotech, you just are on time with this video! I have a couple of speakers lying around which i want to use for my guitar. I needed a video of how to amplify and I've got one. Maybe the next video might be: how to control stepper motors for making your own 2D painters/cutter/printers. Or how to protect your electronics (how not to fry your raspberry pi or arduino) Thanks for the Video!

  • @quinnmiller1997
    @quinnmiller199710 жыл бұрын

    Thanks man! Your videos make all these electronics concepts so easy to understand. Very helpful to a young novice like me

  • @vikdeville601
    @vikdeville60110 жыл бұрын

    your back !!! great work brotha ...... your old vids gave me a new job I love .

  • @Afrotechmods

    @Afrotechmods

    10 жыл бұрын

    Woah, seriously?

  • @spieagentl
    @spieagentl10 жыл бұрын

    As an electrical and comp engineering student, this video made me quite happy to watch, learning about all this! xD I can't wait to check out what other content you have

  • @steelcity321pb6
    @steelcity321pb610 жыл бұрын

    I really enjoyed watching your tutorial: my mind has been set to investigate Class D amplification in a little more depth. Thank you! Phil.

  • @LifeIsGoodMusic
    @LifeIsGoodMusic7 жыл бұрын

    Thank you!! I'm going to watch this over and over until I understand, also study the rest of your materials, great stuff!

  • @himeyxl
    @himeyxl8 жыл бұрын

    Your videos are awesome! You do a very good job at explaining how circuits work.

  • @Grynhaus
    @Grynhaus10 жыл бұрын

    I thought you will never make videos again. I really like your content, you helped me so much to understand electronics, please keep this up. You are awesome!

  • @jasoneyes01
    @jasoneyes0110 жыл бұрын

    Welcome back Afroman! We missed you!

  • @GSR600Relaxed
    @GSR600Relaxed10 жыл бұрын

    Very happy that you are back!

  • @ZoomtronicBlogspot
    @ZoomtronicBlogspot9 жыл бұрын

    I know lot about electronics, and part of my daily job is electronics, bat Your explanations are just great, and in couple days i watched almost all Your videos! just for fun

  • @AntonBabiy
    @AntonBabiy10 жыл бұрын

    Probably the best explanation on youtube that I've seen! Great tutorial!

  • @CharlieTechie
    @CharlieTechie8 жыл бұрын

    I am an old head and was confused as to how you would use a class D amp for audio. You tutorial was great! Now I know, and it is a relativity simple circuit, if you are not designing the IC. Thanks for sharing and I subscribed.

  • @vibra64
    @vibra6410 жыл бұрын

    Excellent!!! Nice to see you back!!

  • @arenics
    @arenics10 жыл бұрын

    Great, you came back posting videos, thank you so much and keep going, I really like them.

  • @theoldwizard998
    @theoldwizard99810 жыл бұрын

    Good explanation of a complex subject. Keep up the good work !

  • @reviathon360
    @reviathon36010 жыл бұрын

    Good video! Once I get some money together I plan to get some stuff from your Amazon shop. Lots of good stuff I've needed for a long time. Even better is the fact that it helps you out.

  • @ElPasoJoe1
    @ElPasoJoe17 жыл бұрын

    Great video. I'm am old guy. Retired engineer - software and systems mostly. When the IBM PC first hit the market, it had a speaker that was gated on or off; current flowed through the voice coil (that's a clue how old I am) or it didn't. The bet was that we could get a (pretty pure) sine wave out of it. Lots of interest but few takers. What we would do was drive the speaker (way) beyond cutoff. It would act as an integrator and by varying the frequency we could get close to a sine wave. Fourier says we can operate in the time or frequency domain interchangeably. Did effectively the same as the pulse width modulation...

  • @frizstyler

    @frizstyler

    7 жыл бұрын

    that speaker must've suffered great deal of dc current!

  • @airthrow

    @airthrow

    7 жыл бұрын

    Joe Burks I love gritty old engineering stories like these...

  • @vinnienauta

    @vinnienauta

    7 жыл бұрын

    I have no idea of what you guys are saying. But I like it!! This is very interesting

  • @silentbloodyslayer98

    @silentbloodyslayer98

    7 жыл бұрын

    Joe Burks cool, so basically we can treat the internal pc speaker as a class d amplifier, but we need some software to pick wav files and convert em in pwm waves for driving the pc speaker, then wiring it to some filter and ta-da, wouldnt be too hard to make... i wonder how back then didnt sell something like this... well the SB was kickin the 90s

  • @alaricsnellpym

    @alaricsnellpym

    6 жыл бұрын

    Well, WAV files only appeared towards the end of that era (Windows 3? I remember .VOC files being the favourite of the early Soundblaster tools before then), but I wrote some software to do high frequency PWM on that speaker back in the day!

  • @Mare0912
    @Mare09124 жыл бұрын

    Great video. I am thinking of building my own amp and power supply for my self made speakers. But I guess I will stick to some pre build or DIY kits. I am really glad tho, I understand now how an amp works. Please, keep up making such videos.

  • @idealistfromontario3905
    @idealistfromontario390510 жыл бұрын

    Thank you, another well explained tutorial, I like how you keep it interesting. Good work it helps me to understand how electronic circuits work.

  • @chavesmarcus
    @chavesmarcus10 жыл бұрын

    VERY NICE VIDEO AND THE BEST EXPLANATION I'VE EVER SEEN ABOUT THIS SUBJECT, I'M A AUDIO ENTHUSIAST AND WOULD LOVE TO SEE A TUTORIAL ON HOW TO DESIGN A CLASS A AMPLIFIER WITH YOUR GREAT DETALISTIC APROACH TELLING HOW, WHAT AND WHY ALL THOSE ELECTRONICS NEED TO BE THERE. GREAT JOB!

  • @billcrowell5096
    @billcrowell50967 жыл бұрын

    Excellent tutorial! The video of the oscilloscope depicting the output should be illuminating for many people. As a musician, electronics expert and audiophile, I absolutely HATE this "class D" abomination; however, where power consumption is critical, it works well. This is also very much how a sine-wave inverter works. The differences being in scale and only 1 frequency - 60Hz. For the best sound quality, a Class-A amplifier is best. The output is working through 360 degrees of the cycle. Class AB is typically around 270 degrees so it saves a bit of power - this is most suitable for high-power RF applications such as linear amplifiers which are tuned to 1 frequency where the "missing" part of the conduction is handled by the flywheel effect of a tank circuit. I would encourage the "younger players" to build the circuit in this tutorial and experiment with different values of inductance and capacitance in the output filter to examine what effect they have on the quality of the final output signal.

  • @johnraines4764
    @johnraines47646 жыл бұрын

    Great video. I need to bump the current output of a function generator and this video cleared up everything that was muddy in my text books. Thanks!

  • @SumukhChandra
    @SumukhChandra7 жыл бұрын

    My professors sucked in making me understand class D amplifiers. I just saw this and picked up so many things in a very short time. Thanks for the amazing video!!

  • @ridgwanwelfred4034
    @ridgwanwelfred40348 жыл бұрын

    not buying things on Amazon so i leave some encouraging words here. Thanks and keep up the good job!

  • @mihalis1010
    @mihalis10107 жыл бұрын

    I have no idea how and why I haven't seen this channel yet. 2 videos was all it took to convince me to sub.

  • @Darieee
    @Darieee10 жыл бұрын

    Best thing youtube recommended in like - evar !! Keep up the good work !

  • @MrJohnnaz
    @MrJohnnaz10 жыл бұрын

    I learn more from you in five minutes, than I can from reading half a book. Excellent, keep up the good work.

  • @denizpnarl3059
    @denizpnarl30598 жыл бұрын

    Clear minded and simple explanations, also enough theory... Thanks man!

  • @wb5rue
    @wb5rue9 жыл бұрын

    I really like your videos! Even your voice (which is a great "radio voice") reminds me of my high school science teacher who was also my electronics "Elmer" helping me get my amateur radio license (back when tubes dominated.)

  • @ThecNiqueMan
    @ThecNiqueMan10 жыл бұрын

    Nice video, very informative. Been following your site for years.

  • @jwrtiger
    @jwrtiger6 жыл бұрын

    Like the information using the 2-Hz signal.... really helps explain the process.

  • @thebighat99
    @thebighat9910 жыл бұрын

    I Really have found your Videos a lot of help and lots of fun, makes me happy that you are making more videos.

  • @ThingEngineer
    @ThingEngineer10 жыл бұрын

    Great job explaining and demonstrating the Class D amp!

  • @johnalenwork53
    @johnalenwork539 жыл бұрын

    This is worth the watch Good explanation of a Class D amplifier one of the best if you have any questions hit me up

  • @morganchandler5126
    @morganchandler51264 жыл бұрын

    Awesome explanation really helps me on my goal of building a ramping voltage power supply

  • @dlrion
    @dlrion9 жыл бұрын

    I love your show. I am just learning electronics in college. This is so fun I sit and watch your explanations just for fun sometimes! What about gear? Maybe if you put some cool shirts in your Amazon store I could buy them, stuff like Dave wears at EEVlog - an opamp circuit that says "I only give negative feedback" for example. Spend some time finding cool shirts and I promise to buy them from your store! Thanks

  • @inventaunmanana4860
    @inventaunmanana48607 жыл бұрын

    This is the type of video that motivates me to keep studying electronic engineering. Thank you !

  • @Davesworld7

    @Davesworld7

    5 жыл бұрын

    Do it, homework never stops throughout your life unless you give up and let others think for you.

  • @EricLeePiano
    @EricLeePiano8 жыл бұрын

    Thank you very much. this is the first video I watched on your channel to prepare myself for an interview. i appreciate your video ^_^

  • @tobortine
    @tobortine10 жыл бұрын

    Excellent video, always enjoy your content.

  • @mrunalahirao9256
    @mrunalahirao92569 жыл бұрын

    nice tutorial! and nice sense of humour! make me feel happy and knowledgeable!

  • @ksb916
    @ksb91610 жыл бұрын

    Excellent video. A good project for the summer.

  • @ronanderson1023
    @ronanderson10239 жыл бұрын

    Really the most informative, fun to watch videos about electronics on the net :P Keep it up and all the best to you. P.S Laughed my butt off a couple of times with the little anectodes :)

  • @aayush5204
    @aayush52047 жыл бұрын

    you are simply awesome, i really learn a lot from your videos. Thanks for such intuitive and superb videos.

  • @TABE-O
    @TABE-O Жыл бұрын

    You have the best explanations. Keep up the fantastic work geezer!!

  • @HebbyMetal
    @HebbyMetal9 жыл бұрын

    This was so inspiring! never even knew class C or D amplifier existed. Thanks for the video!

  • @BlaZee181
    @BlaZee18110 жыл бұрын

    Unfortunately i cant spend money on things like this right now, but you are simply amazing, your videos are just pure genius, thank you!

  • @jordanwaeles
    @jordanwaeles10 жыл бұрын

    Yay for trance music!! I was a bit disappointed that there wasn't any explosion in this video, but the tutorial is great!

  • @Sahko123
    @Sahko1239 жыл бұрын

    You should make videos more often because i learn alot in each individual video, keep up the good work

  • @llorttaf
    @llorttaf7 жыл бұрын

    Another awesome video as always!

  • @MOJICA7257
    @MOJICA725710 жыл бұрын

    I miss your videos Gladly that you starting to make one again THANKS :)

  • @leolloyd2813
    @leolloyd28134 жыл бұрын

    Thanks! I'm taking an electronics course at university but it's totally useless when trying to actually make something. I'm trying to make a bass amp right now and actually understand the course material at the same time, so your video was really helpful!

  • @naami2004
    @naami20048 жыл бұрын

    Thank you for this video, I always loved doing Audio amplifiers, I used the TDAs back in the 90s :)

  • @xenofongounaropoulos4376
    @xenofongounaropoulos43768 жыл бұрын

    Excellent class D amplifier tutorial!

  • @kaustubhcs07
    @kaustubhcs0710 жыл бұрын

    Really great video ! I liked it a lot ! Believe it or not But your channel is the only subscribed channel i watch on youtube !!!

  • @thierryhanot7610
    @thierryhanot76109 жыл бұрын

    Hello ! Very clear explanation..and nice warm voice, Thx for sharing your knowledge

  • @RX7GSLSEowner
    @RX7GSLSEowner10 жыл бұрын

    Very informative, thank you for the time and effort in making your videos! It is appreciated.

  • @thegreatdl6988
    @thegreatdl69889 жыл бұрын

    This video is a great refresher tutorial. The last time I studied amplifiers was 20 years ago. Personally I prefer the sound from a class A mono amplifier. :)

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