Making an Audio Power Amplifier (Drive a Sub Woofer)
ฝัง
- เผยแพร่เมื่อ 30 พ.ค. 2013
- It is not hard at all to make a power audio amplifier. Just follow the instructions.
For more details, please see: www.electroboom.com/?p=243
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The music piece I used is "Close Your Eyes" by Miguel Migs.
By: Mehdi Sadaghdar - วิทยาศาสตร์และเทคโนโลยี
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Smoke is an essential component of any electronic part: when the smoke escapes, the part stops working.
Unless you use smoke generator in circuit
*Sumo* KING may kill people.
Michele Isoli Ming dynasty pussy got me acting unwise
the smoke is the soul of the component
@@Ultrapro011 lmfao
you, sir, are so hilarious, you just earned another subscriber.
yey
Electro boom:
thank you random civilian
420 likes nice
Niight Wraith PepePls
Hope you are still watching him lol
I made a horrible mistake when I was first using a soldering iron. I picked it up like a pen. That really hurt. Bonus I've never done it again.
TheAussieStig30 you're not the only one.
Motörhead LOL LOL LOL
I wanted to clean it after using and kept it on my leg for support😧, forgot that I just turned it off 1 second ago.
@Kiki Studios I knew at age 5, people learn stuff at different times.
@Kiki Studios you live in the universe that we also live in
after watching the electric guitar video for the 1000th time, i thought i'd had my fix of this guy and didnt find him funny anymore. 1:44 -1:54 proved me wrong. im crying
yea look at this duded sweaty ass armpits
I'm fine, thanks.
how the FUCK is this guy still alive???!!!!???!?!!
Christoforos Paphitis cuz he is smart playing dumb and you dumb for Not thinking smart. lol
Christoforos Paphitis Not all but many of his Stunts are Fake.
+Christoforos Paphitis being shocked makes you develop a natural immunity to electricity, I recommend sticking a fork into an outlet to develop an immunity quickly
+Atho I did just that thank you. I got electrocuted with 240V a few times and now I can barely feel it.Seriously it's awesome and I'm thinking about stepping it up to high voltage cables that run across the countryside by the EAC. As a bonus now I can be a bit mischievous and zap people.
+R3D Are you sure? REally??? You got any proof ?
Its fun to see how your video character has changed from this older version to the current one. You mastered it!
3:13 dat recovery
3:20
You fool! You played my mixtape!
Yes?
@@ElizebazzIt's in the description
Man, it's been 2020 now and watching your creation, only thing that differs you from other youtubers out there is , no one can take so much of pain and risk for an youtube video..
Hats off sir!!.
Him and Dan from Slomo guys
Brave Wilderness
Nope,@@FarzynoMusic, they need to do a lot to mimic the fraction of his power😂
@@MicrowaveoficialMaybe, but I was replying on the basis of pain and risk, not power.
Do you need a license to drive a subwoofer?
Deramatic for normal people: No
For that guy : definitely yes
Deramatic you fucking dumb
For the history of bass heads including me dont need a fuckin license for a subwoofer
Im only 13 i used to own many subwoofers i dont care
Stop dem puns.
NerdyBassHead 2004 are you on the spectrum?
NerdyBassHead 2004 thank you for your service sir
"Oh shit, I need a signal source now." The casual way you delivered that was priceless.
When I started to learn electronics, people usually asked me if I had a lot of electrical shocks during classes, but honestly the only shock I had since then was once at home while changing an electric outlet. But I had a my share of accidents, I burnt myself with soldering iron and overheated resistors or semiconductors. I even burnt a 10W 1ohm resistor once and touched it with my bare hand because I forgot that's not because you unplugged the power the heat will dissipate immediately. Some burns, but no shocks...except at home, I'm not safe there.
You forgot one other key thing for using soldering irons:
Don't just put it down anywhere. Always place the iron in a soldering iron stand or on a heat-resistant surface. Even if it is switched off it will still be hot for a short while, long enough to burn your table or potentially set something on fire.
3:20 I can't stop laughing😂
Agreed
lol i thought the speaker got set on fire cus of the music😂😂
sameeeeeeeee
Lol
What’s the song
You are awesome Sir! I am a repair technician at a local music store here in Ky, in the US and I Love Watching YOUR videos!
The things you do for the public, you're awesome man.
I actually left the soldering iron burn through its own power cord when I was new to using it. I put electrical tape over it and still works today.
Great work Mehdi! I'm glad you're making these videos regularly now.
1:48 his wife: WHAT THE F*** DID YOU DO me:lol
No, it's surely his wife. I consider this for three reasons:
1.Electrocute was still young here, and didn't talk. Go check the video with strobe lights which came out shortly after this one so you know.
2.They surely didn't teach a kid how to swear, and if she was repeating mehdi's swear words, why would he say he was fine? He would surely react to his daughter swearing.
3. The voice sounded a bit older.
Your deadpan is what makes your humor work so well!
0:08 scared the shit out of me and made me die with laughter at the same time. Only Medhi can do that.
0:07
ROFLMAO! Loved the double take at 3:25 haha
Ive been shocked by a light switch, and that shit hurts
I've been shocked by a 120v power outlet and my left arm felt wierd and kind of hurt for half an hour or so.
I was trying to route a cable through the wall and was tucking the excess in the power outlet and I accidentally touched the screws on the sides... Idk if it was cause I was wearing rubber sole shoes or if my body just reacted quick enough, but I'm not dead yay.
Nuka Charming The Unicorn King I've been shocked by a 240v English plug and it killed
David Daivdson I can only dream😂
Ha...touch an ac cap and feel my pain......OUCH!!
I touched exposed wiring on a lamp. It wasn't painful, rather it was the most bizare sensation I've ever had.
I once turned off my soldering iron and was trying to hover it over my mouth to see if it's still hot and i jammed it into my nose somehow.
+BrainSeepsOut hot.
+BrainSeepsOut i once touched it with finger to see if it still hot... it was. as a kid, it was a lesson for life :D
i once grabbed the hot end after a classmate pulled the cord as i grabbed it.
the one time a teacher watched me punch another kid and did nothing to stop or punish me :P
Great
1:50
"What da f... did you do?" 😂😂😂😂😂😂😂😂😂
It's So sweet.
TH-cam Shows this video on my list with a little delay (only 6 years)...
0:59, 1:12, 1:47, 3:13, 3:25 😂
1:50
*ElectroCUTE:* What the f*** you do?
*Mehdi:* I’m fine thanks.
*ElectroCUTE:* F*** idiot.
*Mehdi:* What?
1:01
man i love these. i ESPECIALLY love that you actually teach something. im looking forward to new places ull take this
Mehdi does the best Low-key safety video. Also, hertzing for science is always a positive.
I have finals next week. But you are so funny. I cannot contain Lmfao
Me too
tahrn tej me three
Me for
Lol the soldering iron attacks him lol
Hahahaha every year the saaaame
dude you are crazy.....but hats off.....you are doing great..DO NOT STOP and thx
Love the intro. Great consistency with the slapstick. informative, imaginative and entertaining.
Mrs sadaghdar getting in on the act!!! Priceless!!
Wow, i just found your channel and i'm watching all of your videos one by one. You're so funny. This might get me back into robotics and electonic projects :D
You use your upper lip too? I thought it was just me! I definitely came up with it on my own...
+Gabriel Smolnycki and there was me thinking I was the only one that did it too!
I watch you for the first time. You are a genius.
ive actually learned much from you .love your teaching method.
Dear sir I am Anup from India,your mad fan...thanks a lot for your videos....take care...
YO SUP MY NAMES ANUP TOOOO YOOOOOOO
Bro sometimes idk which of your vids are trolls or are really legit XD you're too pro at this thing
he's providing very important safety tips in a fun way that you will definitely remember, very ingenious method of delivering info to his viewers.. So yes, you're right about him being smart
You just earned another subscriber after 1 video. Now I'm off to watch more.
3:12 :D haha.It;s not so bad :D.
I'm panting and hyperventilating I'm laughing so hard
Mad respect for this guy! always making his audience laugh by getting hurt
This guy is a genius, I just love it
I Can't believe bro still with us 💀✅
0:38 add diodes to avoid the crossover distortion in the B-amp part :)
Getting burned with a soldering iron is no joke. I've done it twice changing guitar pickups and it feels like your skin is being stretched, burned and shrunk at the same time.
You're the best teacher I know of. Brilliant and hilarious. It must be so painful though.
a long time ago. What a difference with your today's works. ;-)
HE IS IMMORTAL !!
2:59 it looks like popcorn popping 🍿 😍
you are a genius..man..!!! i love your videos..you are allways giving to us an advice...you are THE Best..
Amazing as always.
Would the three terminals on the battery be used for charging the cells in parallel? You said it goes in between two sets of internal batteries?
+Joshua Lloyd There are a bunch of cells in series in those packs. Say each one is 1.5V (8 battery cells) to get 12V. the center pin is right between 4 and 4 series cells so you assume that is zero volts, and one end will be -6V and the other +6V. They charge the batteries all as one unit which is made of 8 series cells.
Man likes to live dangerously. I will be at your Janazah.
Allay rahmaou in advance lmao
I guess he invented Lucio's gun? In overwatch?
Man there`s never a dull moment at your place.
OMG XD! there's nobody like you on youtube, keep doing ur stuff, it's amazing
3:12 OH goodness the way he looks back and swears
0:50 I always sense the temperature of the iron by having a look at the display of my soldering station.
Best teacher EVER!!!!!!!
Probably the best educator out there, the best way too learn is from peoples mistakes lol keep entertaining :D
You need a own tv show !
00:32 Precisa de resistores de potência e baixa resistência nos emissores para não sobreaquecer os transistores.
Love this guy!!! Always bring a 😊 to my face
Your humor is fantastic.
In the schematic, it shows that you used an Op-Amp and then connected it to a class B power amplifier and then provided negative feedback to the op amp. Wouldn't Just using the op-amp be good enough for this experiment? And would the added parts improve the sound quality because of the feedback?
+TheSinfulFreak By this experiment, I meant the video where you attached a water tube and filmed the water falling at different capture frequencies....
+TheSinfulFreak You can't drive such speaker directly from an OpAmp as it can't provide enough current. You need that class B stage to provide the current. And the OpAmp feedback gets rid of most of the distortion created by Stage B amplifier.
+ElectroBOOM Ah, thank you very much!
TheSinfulFreak
won't this circuit invert the signal ?
and does it matter or not in audio applications if i invert the signal ?
+tayeb mabruk yes it does, and no it doesn't matter
thank you so much for the fast reply :D
+tayeb mabruk The inversion only matters if you also have a sound source which is not inverted. For example you have a speaker which is non-inverted, and for some reason you have an other speaker in front of which you have this amplifier. Some waves will cancel out and it will sound weird.
Even though it reverses the polarity of the output signal, when used to drive speakers in say a stereo configuration ( 2 speakers typically with very similar signals) and you get the phase of one of the speakers inverted with reference to the other, they cancel out and do not create as loud of sound (destructive interference). However since the speakers themselves are not polarized you can reverse the connection of the leads to the speakers themselves to create a situation where they both move in the same direction at the same time (both move out together, or both move in together) and this allows you to take advantage of constructive interference between the 2 speakers. This is only really an issue when you are using speakers that are mounted in boxes, and is far less important when the speaker is free like the one in the video.
Another thing to be careful of is that a speakers power handling will change whether or not it is in an enclosure. A free speaker can handle slightly less power than one in a box since being in a box will limit the travel of the speaker due to pressure waves behind the cone. When the speaker is not in a box the air does not get compressed as the speaker moves in and out which allows the speaker to travel farther on less power and potentially bottoming out which will damage the voice coil.
Not always case when reaching resonance..
Wow i saw you on Facebook few Days ago. So this is you're channel I'mma subscribe 🤩
You deserve more subscribers: This is so good...
I cant help it this is my guilty pleasure im in tears laughing right now
Good avatar
0:59 😂😂😂
The amplifier can be made to sound as good a a powertube-amp, by putting a small resistor in the negative path of the speaker and then soldering the opamp-feedback wire to the negative terminal of the speaker. The opamp will then only see the current through the speaker (turned into a proportional voltage by the resistor). The effect of it is, that the speakers counter-reactance to physical forces (membrane twisting sideways in the video), which modulates the impedance of the speaker and also mimics a false feedback voltage to the opamp, will be ignored, so the actual current becomes the only criteria for the feedback-loop. I tried it at home and it has become part of my stereo, cause it really makes any loudspeaker sound nice and musical (like tubeamp-driven), without that synthetic character or 'plastic-sound' that other cheap solutions have in common.
Wonderful way to demonstrate sir !
1:04 You don't need to touch it with nose. It has 300°C when it's ready BTW
2:52 So are your eyebrows in the outro doing that as well?
Found you on iFunny from your guitar video, watched a few videos and they are hilarious. The pratfall style accidents to demonstrate hazards is incredibly done. I was wondering how you vibrated the water line in your other video and when you showed it attached to a speaker I though of course! that makes perfect sense.
Dude you are so awesome. You have just gotten a subscriber.
a smart Version of Homer Simpson :)
hahahah
And Peter Griffin
Electronic Red Green. . .
DOHm! 😂
At 1:55 you can hear someone says "idiot!" Hahahahahaha
Verdandi not idiot, but fuckin' idiot😂😂
Your videos are great. Thanks for making them.
You're always amusing me. I'm glad I subscribed.
0:07 priceless expression of someone sensing the disaster XD
Mehdi:what did I do?
Mini explosion, Mehdi hits head on shelf
Mehdi's wife: what the f$&@ you do
Mehdi: I'm fine, thanks
Mehdi's wife: idiot.
This is my favorite of your videos.
ElectroBoom is best TH-camr on this channel 👍
0:53 the skin here is quite sensitive to temperature and you can't tell the temperature quite accuraly
OMG I nearly peed my pants
Thanks for going into detail with the circuit diagram on your site!
Man, you're crazy, you're funny, you're good. Subcribed!!
Oh S**** i need a signal sorce now xD HAHAHA omg this is fucking hilarious, sorry you hurt yourself so much man lol
shit dude, i've accidentally watch all your video. please make new one :(
Arif Nur Rahman same
Dude your channel's awesome!!
The laughs you invoke deserve a sub X3
1:02 R=I/P your jewels (????-2013).
Hey daughter, we cant have a son now...
@@TerribleTommyFAN is this some sort of spam?
@@TerribleTommyFAN oh, i thought you were a spam bot, sorry about that
3:23 why did he look back
I love these videos, keep up the good work :)
Your videos are great, they make me laugh every time.
3:22 it the funnnyyy...!!
does anyone know the song or link to the video of the song he played at around 3:20??
AJC Yeah, i would like to know too :D
Its in the description
Here's the REAL 1 - th-cam.com/video/fkPFPlBaZU0/w-d-xo.html there r so MANY copies in the search bar, it's hard to find the real 1.
@@companionsytoriginal873 thank u :-)
VintageBOOM! Made my Day!
Next time you are going to shock yourself, please film it if you can because you are one of the funnyest people on the internet. I think you are an exelent electrical engineer. But you are an even better at makeing people laugh!(: P.S: I love your videos and please post more.