Make your own Low Budget Bluetooth Music System || OpAmp

9 років тому

Twitter: / greatscottlab
Facebook: / greatscottlab
More project info on Instructables: www.instructables.com/id/Make-...
Previous video: • HACKED!: Flickering Li...
Afrotechmods Class D Amp Tutorial: • Class D Amplifier Tuto...
Amplifier Kit (affiliate links):
Amazon.de: amzn.to/1q77lZn
Aliexpress: s.click.aliexpress.com/e/_d8h...
Bluetooth Music receiver (affiliate links):
Amazon.de: amzn.to/1nVWXIa
Aliexpress :s.click.aliexpress.com/e/_dTU...
Parts list (affiliate links):
Aliexpress:
NE5534 circuit:
1xNE5534: s.click.aliexpress.com/e/_dVZ...
3x100nF Capacitor, 1x22nF Capacitor: s.click.aliexpress.com/e/_d8T...
2x470µF Capacitor, 1x2200µF Capacitor: s.click.aliexpress.com/e/_d7I... s.click.aliexpress.com/e/_dWr...
1xBC637 NPN Transistor: s.click.aliexpress.com/e/_dVb...
1xBC640 PNP Transistor: s.click.aliexpress.com/e/_dUX...
3x100k Resistor, 1x10k Resistor, 1x100 Resistor, 1x47 Resistor: s.click.aliexpress.com/e/_dSg...
1xIC Socket:s.click.aliexpress.com/e/_dU3...
In this video I will show you how I combined an old speaker of mine with a cheap bluetooth receiver module. I made a small power amp for the speaker and put all the electronics in a hidden place. I hope you enjoy the video.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com)

КОМЕНТАРІ: 1 400

@DIYPerks 9 років тому

By the way, if you want to power the bluetooth receiver from the same power source, using a ground loop isolator (1:1 transformer) between its output and the amp's input does the trick.

@greatscottlab 9 років тому

DIY Perks I know. But the part did not arrive in time to make it in the video.

@rastlach 8 років тому

DIY Perks HAhahah I was just writing a comment linking your video when I read your comment :) thumbs up to you both for the great videos.

@PrinceWesterburg 6 років тому

Transformer coupling? Ooh you audiophile you! ;)

@edgarkoterle 6 років тому

Or disconnect ground on one end of audio cable.

@AnilKumar-ie9yt 5 років тому

Simply use an optocoupler

@DIYPerks 9 років тому

Just found your channel - instant sub! :D Keep up the good work! Very clear and informative instructions.

@greatscottlab 9 років тому

DIY Perks Thanks a lot ! I like your videos as well. Especially your shard light looks very nice.

@maximuz5174 5 років тому

I'm a subscriber of both of ur channels I really like the vide of u and they innovative and creative I appreciate your work keep us inspiring more on DIYs

@styrishrodrigues Рік тому

Hi guys. Wassup

@nicosuj 8 років тому

I had also a power issue with an TDA7297 amp I made when I topped it, even with an 12V 3A power supply. I used the same solution you used and it worked marvelous. Thank you for all the knowledge you gave to us all!

@GediSpock 7 років тому

I was trying to play my iPhone late the other night. Mrs was in bed. So I put some wood brothers on while I read a book. But it seemed really really distant. So I turned it up. It still sounded distant and echoey. I shook my phone. Stopped it. Started it. So I tried a little bit of Iron Maiden. Same deal. It really stumped me for a minute. Then it went really loud and quite again. That's when I suddenly realised I'd left my phone connected to the bluetooth speaker … next to the bed! 😱 That's why my wife is now storming down the hall, like Darth bleedin Vader, to very angrily ask me if I knew what the f@*king time is. True story. Anyway. I'm gonna make one of them. Thanks. 👍🏻

@sail4life 7 років тому

Oh, this could have been me... Maybe I'd better reserve a gravestone somewhere...

@itsadamoc 7 років тому

GediSpock 😂😂😂 I've had the exact same experience but with automated lights.

@dv5873 7 років тому

Rip

@centripidle4269 7 років тому

pencil sharpener I did the same thing as well. But my speaker was off .. Cause I'm stupid.

@Afrotechmods 9 років тому

Woah, thank you for the mention! Great video as always!

@greatscottlab 9 років тому

Afrotechmods Thanks!

@TheS1l3ntOne 5 років тому

Welcome

@sagelioneldsouza8230 5 років тому

@lil Oofy you're welcome!

@Gkokkinakis2 4 роки тому

Flex tape

@iPodiMaster 8 років тому

If I knew electronics as good as this guy, I could build a space shuttle.

@yasminpanganiban4308 8 років тому

lol

@TurtleIslandCastGamingOG 8 років тому

This guy would make a space shuttle with a laser that can shoot stuff down.

@Spirit07700 8 років тому

+iPodiMaster you need to know aerodynamics first for that kind of project :P

@subha517 8 років тому

Yes dude you are right this guys are beyond limit...real skill they have got...its good to see all these projects for hours at UKposts but to implement in real life and make our own project list is not possible... at least I have not that music talent inspire of I am a electronic project freak :-(

@subha517 8 років тому

Mistake that will be MUCH not MUSIC.... lol

@trentjackson4816 3 роки тому

As you say at the end of each video "Stay Creative" I personally feel that being creative is not the problem. Becoming creative generates passion, ♡ and glory. Being creative (construction) -- is far better than (destruction!!!) I have concluded that it should be a person's given right to do whatever they please, do whatever you love as long as it does not negatively affect another person!!! ☆Long live love, passion and creativity!☆

@noway4040 7 років тому

This video is exactly what i was looking for. I bought a LM386 amp and tried a simple schematic to make it work, but i had a lot of issues, the main one being unable to make it work properly (i am new to electronics). Great video!

@fablungo 8 років тому

What I really like about your videos is that you show us the experimentation you went through and for me there is more to learn from that than just a step by step, start to finish solution! Would have been nice if you could have got the receiver and the amp on the same supply as a solution to that may have solved (or at least helped to solve) one that I have.

@greatscottlab 8 років тому

Fabrizio Lungo You can get rid of the distortions by adding a 1:1 transformer between the audio signal and the audio input of the amp.

@fablungo 8 років тому

GreatScott! Ahhh.... That's what I am currently doing. I was hoping there would be a solution on the power supply side of things but you can't really have a 1:1 transformer for the DC voltage. Using two transformers from the AC side is what you have done here to get the isolation. Maybe a 20:1 transformer (for 240V down to 12V) connected to a 1:1 transformer before any sort of bridge rectifier might work?

@luizmilky9687 8 років тому

+GreatScott! Please explain how I can use a 1:1 transformer to get rid of the distortions! How to install it?

@anchoriticparliament6343 6 років тому

4:58 "it can give me 2.2 amps even though I only need 200" lol, an honest mistake, I know he meant 200 milliamps

@bryanharrison3889 6 років тому

I love your channel, I love your videos, and I love your voice! You are a great instructor, you are very knowledgeable. Your videos are very interesting, and I LOVE your "intro" where you solder the LEDS for your name and light them up! MARVELOUS!

@AfterAllHuman 8 років тому

I like your sense of humour, keep it up. You're a GENIUS. The only thing you're missing is good intro & outra music & High tech video editing.

@werocalle5barrio2 4 роки тому

This beautiful circle!

@funsky77 8 років тому

Love this guy's attitude, "because I am a genius!".

@aritrakundu8123 6 років тому

That's clear sarcasm!! Cause this guy is real sarcastic. :)

@_baller 5 років тому

Russians are like that

@theodiscusgaming3909 4 роки тому

@@_baller he's German

@vhzptahs1206 8 років тому

Your genius so I can't undersand what you say but probably this video can useful to other guys. good job scott

@DMSAProductions 8 років тому

Man this tutorial is AWESOME! i am looking forward to make my own. Great JOB!!!

@Technicalgee 3 роки тому

His famous quote “because I’m such a Genius” 😂😂😂

@TampaTec 8 років тому

cool, I like DIY projects, and you include problems and mistakes along the way which makes you honest, I do that also in my videos but sometimes I edit them, lol. i subbed.

@BADALICE 4 роки тому

You never fail to come up with great projects.

@brasilianguy5437 8 років тому

The ideas presented here are really good.

@__mk_km__ 6 років тому

5:02 "I will use this switch-mode power supply, which can give me 2.2 Amps" "Even though I need *O N L Y 2 0 0* " Amps?!?!

@gel13a 5 років тому

He probably meant 200mah lol

@lionsheart1685 5 років тому

Milliamps

@cia9315 5 років тому

A microwave transformer will do the job ;)

@saikittang7450 5 років тому

Exactly what I was thinking lol

@zerotwo7197 4 роки тому

@@gel13a not a battery

@AnimosityGamers 8 років тому

This is cool but honestly from a main electrical stand point you should of installed a electrical octagon box in the ceiling (a retro one so you can install it with just a hole like you made) because atm it seems like you have your mains attached with a open terminal which could start a fire, would fail an electrical inspection and could potentially hurt someone that is rooting around up there in the future. Experience to back this up is i'm a electrician in Canada and electrical code dictates that you need to have a bonded certified electrical box housing anything above 15v. Anything under 15v can be free aired.

@notmuch_23 6 років тому

When I saw that I thought the same thing. All connections to and splices in main household power wiring *must* be in a junction box.

@derknistermann5613 6 років тому

AnimosityGamers fun fact: Hes german and should know it better ;) Jk you're right as this is in a bathroom and the moisture coukd get up in there. Not the best solution...

@SeanChYT 4 роки тому

Random viewers trying to do the same, unaware they are breaking the law in many countries and also risking killing themselves in house fires... I believe it is careless and irresponsible to publish videos like these without any form of big warning or disclaimer.

@pjsukhwal27 9 років тому

bytheway u r a born talent, your skills of ur previous births helping u

@ccllvn 8 років тому

I love your vids, because you actually show it if you fail at doing something. I'd probably mess up 10 of those recievers...

@AleksandarMarkovicMrka 7 років тому

Thank you sir for this video. It's really educational. I know nothing about electronics, but i like it, so i'll give my best to learn as much as i can from your vids. I hope one day i'll make my own speakers...I just don't know how to calculate like if i wanna more powered speakers (in watts), should i use amplifier with more power...I'm not smart for that shit...

@sail4life 7 років тому

If you are smart enough to use google you can learn anything about electronics on line.

@_klent 7 років тому

Golden Saying "Google is your friend"

@marciooppido206 7 років тому

Cool, but you could have used the TDA 7377, simpler and more powerful.

@kamlakarkadam9073 7 років тому

u deserve the name great scott u are so great

@eddielloyd13 8 років тому

Very well done. I loved the idea behind your projest, simple to you, not to me! But very interesting... keep up the fun work.

@Onelas 8 років тому

well i have a real ceiling not a fake one

@lordfucktard 8 років тому

+Onelas lol

@fanboy6645 7 років тому

mine is 100% concrete ( and Clay)

@lordagyeman3515 6 років тому

Fan Boy Lokl 😇

@PrinceWesterburg 6 років тому

Think about all the women that have to use glass cutters

@TheS1l3ntOne 5 років тому

I have a false one

@eglretrac 8 років тому

My brain just exploded....

@januszektrollfaceniemogezm2781 6 років тому

swaneye34 i think he died

@superbaldi3307 5 років тому

ur ded reason: brain exploded respawn quit game

@nitin7218 6 років тому

Really SPECTACULAR work bro! Gonna try something like this pretty soon.Thank to this video.

@BC1ZM3 9 років тому

found your channel, subscribed, and now I'm binge watching your episodes

@greatscottlab 9 років тому

brandon carter Good decision! ;-)

@luismthen 8 років тому

Nice phone Wallpaper.

@SuperApple1337 7 років тому

What kind of software did you use to make the perfboard layout?

@greatscottlab 7 років тому

Lochmaster

@Bruno-hd9qo 8 років тому

very well, despite being completely unable to make a sound amplifier from scratch you gave me an excellent idea that is, input a speaker in the ceiling. That's a great decoration tip...

@golski4878 4 роки тому

This is what exactly our Power electronics teachers want from us as a project this helped me a a lot

@avishamin220 6 років тому

Make a audio amplifier based on transistors

@jeantsaiaviation 8 років тому

dude your videos are fricking awsome but one problem i don't know anything you're talking about with the amp ohm and how you solder everything

@rajpootrajpoot-zn6sk 8 років тому

@phabi0 8 років тому

+jean tsai lol

@2101nick 7 років тому

Too smart! I have no idea what is going on, but I can tell it is very good!

@daviddavidson1372 7 років тому

love all your videos.Great job on all.

@saadwazir 8 років тому

bro your video is soo helpfull tnx for the you are amzing, bro please tell me which software you use for stripboard design ??

@greatscottlab 8 років тому

+Saad Wazir Lochmaster

@saadwazir 8 років тому

tnx brother :)

@games4life172 8 років тому

+GreatScott! NICE VID!!! I saw a website that you use and it said let's make then an input box , which site is that??

@jacobmcallister6041 8 років тому

+Games4life Inscructables is that website

@DasIllu 8 років тому

Listen up +GreatScott! , fellow german here. I hate to be the smart ass all the taime but when it comes to security, well here goes my rant. That power supply is not rated for moist enviroments. There are enough cheap ass IP67 rated supply modules out there. Why am i so concerned? Well you are instructing people on how to handle AC power. But that job is not done with just turnig all off and then back on again. Not all countries have regulations concerning protective circuit breaker like an RCD/FI. And to the rest out there: There is no need to be afraid of electricity. But security goes first ...or not if you like the smell of BBQ in your bathroom ;-) Anyways, i enjoy your videos and subscribed. If you need information about electrical safety, feel free to contact me.

@greatscottlab 8 років тому

DasIllu Why is my ceiling a moist area? If that would be true, I would have more problems than a lack in security.

@DasIllu 8 років тому

GreatScott! Warm Air usually rises up. And warm air has a lot more capacity to transport moisture. (ref. relative humidity vs. absolute humidity). So when you for example take a shower, you have a very moist air seeking it's way through any hole. Ones arrived in that space between concrete and ceiling it'll propably condense at the first thing that is colder than it's surroundings. Guess what... Slow temperature changing metals in your power supply. Once enough water accumulated, it will start to flow according to surface tension etc and maybe short out or change resistance of some components needed to regulate the whole thing. While there is a bunch of other reasons why you shouldn't do it this way (i.e. VDE) this is one of the major problems. This might work without any problems for you. But what about a family of 4-5 people all showering in the morning when the roof above is still cold? See, just because it works for you doesn't mean it is safe for all the people you adress in your videos. Felt the need to point that out. Those 'stupid' rules are there for saving lifes. For unexpected circumstances too often cost lifes. regards from Saarbrücken

@greatscottlab 8 років тому

DasIllu Sure

@DasIllu 8 років тому

GreatScott! I used to work as an electrician in explosive enviroments and maybe i am a bit biased. But i also learned how simple circuits may go rogue on you once they are exposed to conditions they are not designed for. And to just put some more VDE in. If you are to power down a whole room, it is not done with confirming that the lights are out and the hairdryer doesn't work anymore for that you can accomplish by breaking just the neutral wire and still have potentially deadly 230 or 110 Volts. Sometimes it isn't even the electric shock that is the most harmful thing. Just getting startled enough to fall off a ladder can harm you as well. I encountered such situations several times even when i was most careful about security

@VictorArias94 8 років тому

GreatScott! Wich soldering iron are you using?

@MichaelSeow 8 років тому

Well done Great Scott

@Toid 6 років тому

Great video! It sounded like you had a ground loop the first time you hooked up the bluetooth module. Great work around by using a separate power source. I'll have to subscribe to watch more of your awesome videos!

@MRZjuan 8 років тому

I wish I could do and know all this shit :(

@rjmolina13 8 років тому

Same. :(

@UnchainTheNight1 8 років тому

+Juan Morales You *can* know all this shit. It takes time and practice.

@rjmolina13 8 років тому

True, man.

@bladerunner5140 8 років тому

bro. get online thru phone. hitup IBSTRUCTABLES. COM. ez street.... 20 bucks for equipment @swap meet. get busy kud!!! :)

@dnooch2147 8 років тому

I got an easy way to get the exact same result exept portable and can also be done by connected cord buy a speaker

@ShawnSQZhang 8 років тому

Thanks to IB Physics... I understood shit here 👌👌👌

@ShawnSQZhang 8 років тому

Nope... nevermind. I got lost...

@etechguy1009 8 років тому

Its not too hard to follow, he just built a simple amp that boosts the low ac voltage coming from the bluetooth thing.

@manny100019991 8 років тому

bro ur awesome... I've watched alot of ur videos n although I don't know what you are saying sometimes the results are amazing. I wish I knew all the things u know...

@drago10029 9 років тому

Wow! That looks amazing and fun, I wish I knew just half the things you did.

@Funhubble 7 років тому

Das geht doch viel einfacher. Da gibt es doch kleine Verstärkerplatinen die ein BT Modul bereits drauf haben.

@youcandoit1633 7 років тому

Is there an electric code for shoving transformers behind dry walls?

@NormadYT 4 роки тому

Yeah it's called go fuck yourself. The IP rating for that shock box is fine enough to stick in drywalls

@fullywireduk 3 роки тому

Wow I've been watching you for 6 years because I remember watching this when it came out

@1Patient 7 років тому

I like your home screen on your smart phone....great project...thanks for sharing.

@weberito 8 років тому

"pretty high quality speaker" :D

@redolfos 7 років тому

2:15 PORTUGAL !

@duartefilipepereiraneves6933 5 років тому

Yahhhhy PORTUGAL É O MELHOR CARALHO

@noxmessortv1975 5 років тому

Vim aqui ver se este comment existia hahaha

@Sanjay_Das 8 років тому

In one word you are GENIUS.......

@DogRox 9 років тому

good job! I especially like the print-out you made of the board, prior to building it. What did you use to design and print the board on paper like that?

@accountdeactivated5486 6 років тому

You need 200A and you choose a 2.2A? Just kidding I'm not an idiot.

@TypicalNerds 6 років тому

Ws2812B I commented this before you and you took my comment and credit for it. You b####

@genjitakya8466 5 років тому

what 200A are you kidding me

@genjitakya8466 5 років тому

haha

@maxxiang8746 5 років тому

@@TypicalNerds you brik it isnt hard to find that, i was about to comment this typo too

@ElitesEngineering 9 років тому

Don't bother turning off the power in North America. Its shitty. Only 110v.

@GilesWendes 8 років тому

Elites Engineering lol

@ElitesEngineering 8 років тому

***** Its okay, it does not hurt, unlike 220v in other countries.

@Arseny97MC 8 років тому

Elites Engineering I don't know too much about this kind of stuff so I might be wrong, but I'm pretty sure its the amps that can kill you.

@ElitesEngineering 8 років тому

Arseny97 Yeah its the amps, but its okay, I felt 110, and 220. 110 tickles, 220 hurts.

@rickburnout666 8 років тому

Elites Engineering Dont try 415v coz it killed me, luckily the paramedics shocked me back to life, 240v is just a tickle now after playing with too many volts in the workshop lol,

@iliasanisis7799 9 років тому

best of all I liked your idea apon bluetooth. thanks for sharing your great video

@JaqiesGadgets 8 років тому

"I do not want such problems in my ceiling!" the way you put that is hilariously awesome!

@remynisce33 8 років тому

You're so genius u broke ur receiver lol..

@MyBadjoras 8 років тому

Are you Portuguese?

@greatscottlab 8 років тому

+MyBadjoras German

@MyBadjoras 8 років тому

oh ok one of the chips sayed portugal :p so i assumed

@MrHrithik7 8 років тому

+GreatScott! Hey, great project video! I wanted to ask that the speaker u used, was it a 2 way speaker or a 3way speaker? And u added a transistor based post amp to ur op amp, I'd there any way it could be made by MOSFETs for more power? Also I'm building my own portable speaker, my amplifier ic is a cs 6283cs, when the sound is paused , there is some noise still coming out of the speaker, how do I remove that noise so that when I pause the sound, there is no unnecessary noise?

@arvsolutionspt 8 років тому

+MyBadjoras Mesmoo (samee)

@miniwarrior7 8 років тому

+MyBadjoras ahahahha ^^ Chips are made all over the world and arent location dependent at all. Your TV has chips from probably a minimum of 5 countries :}

@samulogs7851 6 років тому

hats off to this guy!!

@MyBadjoras 8 років тому

Man you're crazy love your work

@Fordraptor12 8 років тому

Why would you want that in your bathroom???? 😝😂👍🏻

@nextstorming3908 8 років тому

Music in shower?

@itzzjok3rzz208 8 років тому

+NeXTSTORMING with the steam of the shower it could rust the metal

@nextstorming3908 8 років тому

ItZz JoK3rZz the metal is galvanised

@playlists-theverybest4335 7 років тому

+ItZz JoK3rZz I would not put this right above the shower

@BoboButYouCanCallMeTom 7 років тому

To become the best singer of your bathroom!

@ESHouten 8 років тому

99% of the world cannot do this... only amarika has stupid plated roofs

@greatscottlab 8 років тому

+ESHouten I live in Germany.

@dauf69 8 років тому

+TheFruitsClan You got concrete bathroom ceiling? Because here in Indonesia, most bathroom ceiling are either wood or drywall.

@devcon2541 8 років тому

+GreatScott! 230 arent very dangerous in this case because the Rcd would get out

@slawor4 7 років тому

Jens petre It's still dangerous, you should depend your life on some electrical device, because those can fail.

@nihadasadli2642 6 років тому

Amarika lol

@antonyxiao1581 9 років тому

MIND BLOWN!

@adrianrodrigoguitar9482 9 років тому

Nice video! I have a little question: if you want to listen the two channels (left and right) of what the player is playing, you can just solder the two channels on the jack and then connect in to the amplifier! Thanks!

@Maciieeekk 7 років тому

simply beautiful diy tutor....

@jakefinn2909 9 років тому

Awesome explanation! This helps a lot.

@emanrabbitphil575 8 років тому

how i wish i could do that too. you're a genius bro.👍

@DineshYadav14 7 років тому

Great Video. Can you please make up a Video on Types of Amplifiers (with explanation of circuits)?

@fingerr 5 років тому

Thumbs up bro.thats awesome(just like your other projects)

@eunospaine906 8 років тому

That's such a good idea. This channel is awesome!!!!

@SoCalFRAUDS 9 років тому

OMG thank you for this video. It helped me understand why my external bluetooth device was making noise when I plugged it into my cigarette lighter and onto my amp. Then I went and took one of those external batteries and I was able to run power to my device without the feedback. Now my only question is, what can I do to charge my device at the same time while I am driving? Do you have any suggestions? I will be taking this to my audio guy but I don't want him ripping me off or even worse destroying my vehicle!

@TheFakeVIP 8 років тому

I have to say, Great videos. Keep up the good work

@victormanueltalamanteayvar4505 8 років тому

Great video, I will try it, and if it works I am gonna tell you about it, thanks for sharing, regards from Mexico.

@electronic7979 5 років тому

Excellent project

@djquestionthis 8 років тому

Fantastic build, Im going to build, but add some external sensors to provide feedback such as current draw and operating voltage with Arduino, should be fun thank you for this great tutorial.

@rishabhsinghrawat1804 5 років тому

Great Scott,you are awesom man. Can you teach me from where did you learn all this stuff ?

@soumyadeepnaskar7878 8 років тому

thats great ................ i really wanna make dis one this weekend

@architkaushik3886 5 років тому

Thank you very much. U r always an inspiration.☺️ Keep up.

@ahmetkonukseven7140 8 років тому

you are totally genious and talent bro. that is why germany uses turkey as a workforce source.. greetings from turkei.. :)

@chrrtz_builds2018 8 років тому

hey Scott congrats your video overpassed 1 million views congrats men

@AdrianoTassini 8 років тому

Great solution!! Congrats!!

@Jaykk02 7 років тому

i dont have any knowledge of this but is satisfying to watch.

@nioniarditosfishing9036 4 роки тому

You are the best youtuber everrrrr!!

@thethoughtfield 7 років тому

Neat Job, thanks so much. This is great inspiration to improve mine :)

@greattech881 7 років тому

i love you're project s

@antmallett6065 8 років тому

Nice project, and good info via instructables. I'm wondering why you use a premium op-amp like the 5534, when a TL071 would suffice? Or am I wrong?

@semtex6412 7 років тому

greatscott, you are such a genius! :D

@sebastiannygren7118 9 років тому

Awesome video and nice tutorial.

@DishantPandya 8 років тому

Awesome, thanks for sharing it!

@sidharthjain5841 6 років тому

You are such a Genius

@KimNguyen-kq6ve 8 років тому

@GreatScott! when I inserted the battery and speakers battery power source usb speakers made it sound interference how to eliminate the noise in the circuit thanks sorry about the article because I come from Vietnam using google translate

@mihailsaltirov5333 8 років тому

Ur good thats nice and yeah i wish same as Juan but i study that about now at school i understand that and i will try it close as i found some speaker

@dantebjs2 8 років тому

Wow nice vid man! :) I just have a question, did you separate the supply for the speaker and the receiver? And if you, is the source of the receiver DC?