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You have a great radio voice!

I hold a BSEE and I just wanted to let you and your viewers know that you do a fantastic job with these videos, I only wished that I had these kind of resources when I was first learning this type of stuff.

You are my hero. I'm an art major taking an electronic art class and we're using arduinos and I've got no idea what I'm doing but this helped a lot!!!

Cool! You can use it to amplify any phone! Except iPhone 7!

Never stop making videos, you are a much better teacher than anywhere else on the internet

I used one of those on my research project back in 1985. Worked good. It amplified my Votrax speech synthesizer controlled with a Radio Shack MC-10.

Did you really say "After I was done beeing a striper" ? HAHAH!

I wasn't sure who to believe as several other youtubers (who specialize in audio electronics) suggest 200-500uF output caps. So I tried it and the bass was way quieter than everything else. Replaced it with something over 1000uF as you suggested (2200uF) and it's fine now. It led me down the rabbit hole of realizing the cap and speaker form a high pass filter, so I can calculate the right values in future now. :) Thanks for the great tutorial video!

omg, it was around 6-7 years ago when i found your channel and got into electrical stuffs in detail, not just that i want to be an electrical engineer, i think i can thank my interest in this hobby(now as an EE student, in my second year) partly for you. I have built some pretty basic motor and 9v battery and it drove another motor which worked as a generator for a third one. But this was the point(Your first videos) where i got into learning from KZfaq and i gained most of knowledge from there(You, Dave Jones and so many others). Fascinating how much i learnt from KZfaq. Thanks for your older and especially newer videos after a long break. Great video as always!

I found your channel a while ago, about two months ago I un-subbed from a lot of channels but I kept yours, THANK GOD! About a year ago, I wanted to build my own radio. Well, I struggled getting started because I wanted more than a foxhole radio. Well, maybe I will get back into it!

i love the simplicity of these videos, keep up the good work!

I made this amplifier. Very great sounding. Thanks a lot and may god bless you for spreading such usefull knowledge to all.❤

This one of my first electronic projects. I built one when I was 11.

Africantechmods, you rock bro! I built one exactly to your specifications and it works great. Greetings from Amsterdam!

Def building this as a project. Will document all steps, sims, etc., & make the case out of acrylic so it the work can be seen. Thanks so much! 👍

Thank you for sharing this project! I've made an SMD version with EasyEda, JLCPCB and LCSC and it works just perfect! Maybe I'll publish an instructable!

Just made this amplifier and it's working perfectly. I even added a potenciometer to adjust the volume. Thanks for making this video I've always wanted to make something like this

Excellent tutorial! The lm386 amplifier was my first amplifier I built 2 of them was used with 2 aiwa bookshelf speakers, very loud. No I have been building much higher powered amps, such as my 4,000 watt amp.But that's what I do now.

I need more videos like this. I dont understand what all that means but it still entertaining to watch

Just stumbled upon this channel B A man A Lot of great info simplified into an easy to learn visual and audible electronic gold nugget Right on man great job

Great video! And I used to put a capacitor between pins 1 and 8 to increase the gain to 200, and that makes it a good electric guitar amplifier!

Yes! Been waiting sooo long for an awesome video like this.

Wow this is the only set up that works. It worked for me. I bought a pack of 10 LM386 chips on Amazon I thought they came defective because never sounded loud and had a popcorn sound. But the way this circuitry is set up works perfect. Very loud

I wish I could upvote this video twice. Well done.

... thank you for sharing your unique skills with us! Presentation flawless!!!!!!!!!!!!!!!

I had a similar circuit to yours but it was a little noisey. After increasing a few cap values to match yours and adding that 100nF cap between LM386 pin 6 and ground instead of the RC combination I had, I have a very quiet circuit. Taking your advice to shorten up the wires eliminated the am radio station I was picking up too.

i really like how you explain what's going on and why and how to solve the issues. WEell done! :D

I think this is just what I've been looking for, other than I want a stereo amp. I'll have to make the adjustments. Always have loved the little LM386 amp IC.

Afroman is back! KA! Support the channel by clicking on the bell! This is a valuable channel. Hope your cat is doing well, pretty cat I remember...Pitchatu if I remember.

Thanks for making this nice video. I build this circuit today and it works fine.

Hi AfroTechMods, Good video. I like the old LM386 for small amps. I have built a lot of them and from John Audio Tech on YT I learned that you need to have a separate ground path for Input, Power, and Output. They should all junction right at pin 4, ground. His video is " LM386 and proper grounding". At best you can expect around .6 mW of output power. It is best to power them at 9 volts for heat dissipation. Do not use 4 ohm loads. 9 volts, 8 ohms and your golden, as John Audio Tech say's. Good to see a new upload. Be good, C.

Thanks for your work, I have learned hugely by watching your videos. Just one thing: my son (13 years old) has built this amplifier, following your instructions. He has soldered everything and powered with a Hanmer HM305P, it works fine for some time, then boring noises start to litter the performance. Our hypotesis is that the power supplier, at a certain point, stops working properly, introducing annoying disturbs. We are planning to feed the amplifier with a battery but, in this meanwhile, a comment from your proficient side, would be welcome.

It made all the difference putting the caps across the power rails and adding one to the bypass pin

Thanks for sharing this Sir. Added 50k pot at input and works good.

an other awesome video of one of the greatest explain brains on YT - thank you!

You are wow, I came across the youtube videos for my project i.e. Parametric Audio Equalizer where I also need a amplifier. None of the video was clear as you explained, But you are video means a lot to me, thank you for sharing with us, great job...

you could also build two of those, one for each channel left and right and BAM stereo amp

That's cool, thanks for sharing it! So much to learn!

This was just what I was looking for! Thank you very very much!!!

it looks good worth a go just for the fun of it. Thanks for sharing your knowledge.

Like. Mine turned out well, on perf board keeping componenets close with lots of solder. Thanks for the confidence boost.

I usually use TDA1554s for generic audio amplification purposes. 4x11W or 2x22W, just as simple to use as LM386 and still quite cheap.

Thank man, i made it watching your tutorial and using your schematic!

I learned alot in this video, especially the dc output cancellation 😅

Thank you! You're an amazing pedagogue!

Been looking for this for a while now, thanks a bunch

nice simple design, i just made one of these for an external speaker for my CDV 700 Geiger counter. works great and im pleased to be a subscriber to your channel.

thank u sir for suggesting the great courses plus.....

"After I was done being a stripper" - What the heck did I just hear? - Scrolls down to comments

Alright, very cool, that was a handy little video. Thank you.

I want to learn a bit more about different types of microphones, how to use them etc... But I'm too lazy to read so I shall wait to see when it gets posted, or if ill get a comment saying there is already an extensive video on it. keep up the great work!

superb, loved this.

Just love ur videos wow... The tutorial, everything abt it. Thank you!

Great video. I was looking into amplifying output of my Helmet speakers. Trying to build something as small as possible.

Just worked so fine 🙂 ..thank you so much

would love to get such a video on higher power amplifiers built with mosfets and such

I just love your videos...! They are very informative.

Connect pin 2 to GND with 150 ohm resistor, not directly. It will work better. Put 100uf capacitor in parallel with DC input. There is one in your diagram but we often forget it! And if you want bass booster, connect 333 ceramic capacitor (0.033uf) in series with a 15K resistor, and then connect other pin of 15K resistor to pin 1 LM386, and other pin of ceramic capacitor to pin 5. You can also adjust gain between pins 1 and 8. I usually use LM386 as preamp that can have up to 200 gain! You need a capacitor in parallel to the power source, even if it is a battery. bypass is not needed (pin 7) and will most likely cause some more troubles. Output capacitor should be 1000uf at least to get good bass and better working when placing 2.2 to 4.7uf capacitor value between your stereo to mono converter and LM386 input Replace output filter 10 ohm resistor with 4.7 ohm.

Now I realize how many speakers I had wasted before during the stereo to mono conversion but without the resistors!

Again great video Afro :) thanks

Use two for stereo= twice as loud! Great video.

Another very interesting video tutorial. Keep 'em coming! Now I want to build this amp for myself. I guess I'll have to start looking on all of my salvaged electronic boards for parts since I am retired now on a fixed income. :-( Pulling components off of old computer boards, an amplifier and an old UPS power supply that smoked should keep me busy for a while as I continue to watch more of your video tutorials. Thanks for posting these interesting videos on electronics. W Rusty Lane in eastern Tennessee (Witherington Place Railroad)

i love you and this channel!

hey welcome back ,keep it up

Works Beautifully!

He's learning on his own! Let's get him!

wow you sound great, and thanks for the great and easy to follow video.!

Great tutorial again. I will try it.

this is extremely helpful, thanks

Nice video, keep up the good work! Thumbs up !

its work done thanks sir and i add potentiometer befor the speaker its value between (1-5) k ohm and i can control the sound

Playing this video on my new Amplifier... Thanks Afrotechmods!✌

"sounds like bieber" ahaha Auto-subscribed!! Love your videos!

Thanks , man , this is really nice!

Thanks. This video helped me a lot.

GOOD, NICE video! Thank you!

This is awesome!!! Thank you for this video..

great video!!! thx for te stereo to mono tip.

I'm watching this and listening to it with the circuit I learned to build here. Sounds good but I need to use the 1000uf. It has a 450uf on a 4ohm 3w speaker. Sure a speaker box of correct size would change the situation also.

another awesome video! thanks.

Nice video, and well explained.

You could use two of the 386 chips at the same time since they are mono, have one of them amplify one channel then have the other amplify the other channel for basically two watts, Allowing more power to be transferred to the whole system, and one speaker for each amp, so just the one amp wont draw more current and get hot or quieter when hooked to more than one speaker especially from delivering a decent amount of current :) Awesome Videos Afroman!

Hi, I think your videos are awesome and I learn a lot in each one. What needs to change if I wanted to design a larger power amplifier?

Awesome, great stuff !!!

This would be interesting to setup for my PC's beep speaker. I have it set to do a grub init tune however it's pretty quiet compared to IBM PC's of the 90's. Have it powered from a molex +12v

Hi, great easy to understand video. I really liked that you included the first version which gave unexpected results and then showed how to counteract that. I do have a question however, if i were to make this circuit for a stereo application could I just double up the circuitry to achieve the same result? Or should I add something else to counteract the coupling of the two signals for instance? furthermore how would I add volume/ gain control to a circuit like this and would it be possible to get gain control for two channels using only one potentiometer? Thanks in advance, i hope you get to see my question.

Good informative video...Thanks!

Loving this channel!! If there was a way to order supplies from a Canadian retailer and support these types up uploads, i would use it. ;]

realy liked the video learned a lot

You've eased my intrest. I hope to do some small projects, then try 60 wpc or more stereo tube amplifier. Slow, going. I'll keep watching. I bought some Chinese junk and was out hundreds with junk that cost too much to send back. W

One cool variation: instead of joining L+R channel inputs, duplicate the circuit, each with its independent L and R input and speaker, and get full stereo sound. With one full Watt *per channel* to boot.

thq for awesome video im very inspired by you

Awsome vid ty. If we make two of these can it be used for stereo ?.

Muy bueno hermano, funcionó perfecto.

great vídeo, compa

Hey Afrotech. Thanks for the vids I find them really informative. Just started with some audio amp and trying to wrap my head around it all. I was just curious if you could expand on a couple of things quickly. They are probably really basic so feel free direct me anywhere else. First how do you know what value capacitors you should be using? Why does the Capacitor filter the hig frequency rather then an actual High pass filter?

I can not believe how is this world. Yesterday I thought about Afrotechmods and if he is going to release a new video and here you have it. Ok ,ok... I also thought he got hurt on some of his blowing and catching fire experiments.

Love it ,what was the last schematic of this amplifier it 's awesome !!! thanks ...How can you add more speakers ???

In case anyone missed it (because I did), one if the resistors is connected to ground, the wire is just real thin.