What is an oscillator? Oscillator tutorial in HD!

The basics of oscillators - what they are, what they are used for, and it shows a couple of demo circuits with a sine wave oscillator and a square wave oscillator. Clock generator circuits for digital processors are also briefly mentioned.
Website: www.afrotechmods.com

[@Afrotechmods]

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[@marciokoko1]

Im taking it, its nice

[@PlatinumH.2]

That was an awesome introduction to oscilators

[@swrdghcnqstdr]

FINALLY! A professional-sounding educational electronics channel that both knows what they're doing and is engaging.

[@simonsays9998]

"i can host my own rave" lmaoo. thx man im learning and was so lost

[@myclem6674]

Every time I search for an electronic tutorial, I find your work the most useful and relevant. Thank you for spending the time to make the videos.

[@muhamadhamdy6576]

loooooooooooooooooooool hahahaha mexican wave!! dude you're awesome!!!!! why don't we get teachers like this in college

[@147andymc]

Go to a different college

[@caiopereira1289]

@@147andymc lol, my physics book had a problem about something similar

[@gymkata98]

I have really enjoyed all of your videos. I am an electronic engineering student through DeVry University. Since all of my classes are online, it's so nice to watch your videos when I don't understand something! Thank you and PLEASE keep what you are doing…you are helping people!

[@ananazzist]

Great vid, straight to the point and no BS. Gj!

[@ellieboi]

Overclock to something crazy like 3 GHz! Wow, lot has changed in 8 years. Thanks for the video.

[@BrokenCapo]

lmao... your the best teacher... love the way you add humor which helps absorb the material

[@MoTheBlackCat]

Yup! A short but on the point and funny video still up to this day, just awesome!

[@jennabon]

loved it! fabulous video, easy to understand, and you're riotously hilarious. thank you.

[@ayuminor]

I love the humor embedded in this tutorial

[@Finiras]

Thank you, you are awesome. I was hoping for more examples of oscillators.

[@fbpoulsen]

I love your tutorials!

[@blackdragonx1186]

Please upload more videos! They are amazing!

[@trance183]

@Afrotechmods Amazing tutorials!

[@AlexHernandez-ml7we]

Very good description, thank you!

[@g-ed0818]

Thank you.. You are such an angel before my test...

[@chris0419]

Great tutorial man. Funny, and straight to the point. Thanks.

[@godswillgoodluck]

Keep it up I love the way you explain

[@jorgewashington2981]

lol @ Mexican Wave. Thanks for the vid. Love all your tutorials. You're one of the best on You Tube.

[@chicku975]

Awesome explanation!

[@LinardsHunteR]

Thanks for the video. I have learned a lot.

[@dorothygaikwad2181]

wonderful teaching

[@Arthur61987]

You're hilarious. I learned and i laughed, thank you.

[@kaytesun6447]

thank u sir! very helpful i love oscillators so cool

[@johansontechnology]

Good job on this tutorial.

[@eddylopez76133]

that was awesome, thanks for this vid. this is so interesting

[@Afrotechmods]

@chickenmunt RC oscillators means oscillators based on resistors and capacitors. I described two such circuits in the video. There are hundreds more out there. If you meant that you want to know the math behind why oscillators are inherently unstable systems etc. well that's way too much to cover in 1 video.

[@CiedJacaba]

9 years old comment gets its first comment and like.

[@habtamusium8646]

thank you ! nice approach

[@LOPEZdJUNGLIST]

ur a great teacher thankyou

[@rolesroys12]

Excellent Project

[@maxpvisuals]

i feel like i just worked out the meaning of life thank you

[@ch0vits]

You explained it easy. Thanks for that:D

[@khaledomar9411]

thx a lot . you give the information directly

[@jamesrajan100]

awesome explanation thanks

[@IncoherentRussian]

Another excellent tutorial^^

[@user-pd4wz1oo3x]

hello 12yo comment

[@xila8861]

Sir ,you're awesome .

[@JohnSmith-ed1sr]

Great video man, pretty funny too

[@nikolavulinovic8678]

Awesome video, helped me a lot. I just want to know did you make any adjustments to the NE555 circuit to power all those white LEDs for your rave? I made the same circuit and connected only 5 red LEDs but I don't know if the same exact circuit will work with a bunch of white LEDs. So yeah, did you make any adjustments? Thank you in advance, I really hope you answer because I really wanna host my own rave!!!

[@chenyu8553]

Nice introduction! How about the difference between oscillator and crystal?

[@industrialdonut7681]

I love your videos :D

[@FutureAIDev2015]

How would you use an oscillator in a switched mode power supply in which the duty cycle is determined by the difference between the output (measured by a voltage divider) and a Zener reference voltage?

[@garyng3382]

thanks! i watched 10 times.

[@NicholasAarons]

That Was Awesome Dude. Great Video. Now on to the important stuff when are you hosting your Rave & where's my invite? LOL. Keep up the great work. Nick.

[@gary909]

Great - many thanks!

[@bboymac84]

this guy is awesome!!

[@chems]

*!! STUPID QUESTION ALERT !!* Would this be AC current since your changing the voltage back and forth and measuring it with frequencies? If so, could I use a transformer with batteries then since this will create an AC current?

[@areg7182]

yes

[@bobbob-uv1oi]

what kind of what kind of circuit would be required to make the Mexican wave?

[@noormuhammadmalik2482]

a Mexican oscillator xD

[@pvsmouli7727]

hahah

[@Shino-lr2wi]

Noor Muhammad Malik made out of tacos

[@SheepUndefined]

Beer and a soccer/football game.

[@josephkreifelsii6596]

Fútbol, Tequila, and Tacos.

[@PuddiStarcraft2]

I lol'd several times during the video, great job man!

[@danielcherrill269]

Nice vid, Big up! :D

[@techNK12]

wow thank you sir... thank you much

[@HHOhybridBuilder]

@Afrotechmods I'm so sorry what I meant was to fully charge the 2 volt lead acid battery. The source of power is a 12 volt lead acid battery and I'm replacing the LED with a 2volt lead acid battery to be charge up.Thanks for the info.

[@bonbonpony]

02:14 So what could we do if we wanted to tweak the frequency by electrical means (e.g. from another oscillator) instead of tweaking the knob of a variable resistor?

[@TeraVoltLabs]

Mexican wave, genius, you are funny and a great teacher (:

[@martinmartinmartin2996]

for the electronc layman': An oscillator can be made from an amplfier with gain >1 but must be made with "POSITIVE feedback" that causes the amplifier to produce an AC OUTPUT , even when that circuit has NO external input .

[@ginsengaddict]

Can I use this circuit with a HV transformer and tiny lightbulb to make a very small plasma globe.

[@Cruxted270]

Hello, i have a question is there a way to change the frequency oscilation with a dc voltage?

[@Kennynva]

Can I use this circuit to make a 470khz signal...like a signal generator for the alignment of a radio circuit??? and which resistor would I need to make this work??? Thanks...I really like your video's and how you teach...

[@VoidHalo]

First way I generated square waves was with an astable multivibrator made from BJTs. I didn't have any 555s at the time.

[@raphaelwelti6632]

He put that corona beer there 10 years ago and had no idea

[@maraos8869]

555 oscillator bike blinker :) , must make this!!! thanks so much

[@jdflyback]

@Afrotechmods what is wrong with powering the Lm324 with a single nine volt battery and calling the negative terminal ground? Please respond

[@A9noor]

Thanks for that 💜💗

[@rrgiri]

fantastic :)

[@umargul5644]

Well done

[@anonimo1633]

Hey!!!! Please can you tell me why when you put a capacitor on the output of the sine wave oscillator the waveform shown on the oscilloscope became positive and negative even if the output signal was only positive? The same circuit give me the same result but there's no way to power an LED in either directions! Thanks a lot!!!

[@neira.francisco]

Now, what about make the topic deeper? Types of oscillators? I know you'll make the class awesome

[@ariannerojas2084]

Hi i would like to ask if i could use 555 timer oscillator as an input to my 8:1 multiplexer? :< i badly need your help!

[@sekhargurung2962]

I never knew about Oscillators. Now this changes my view about electronics from boring to very interesting :) Thank you for the Video

[@MeneTekelUpharsin]

Oscillator is something that creates oscillations. Oscillation is a fancy word for something moving back and forth.

[@Afrotechmods]

Did you find the Dave Dowsett track?

[@sorctu7100]

I want to try on simulation ? what simulation software that you recommend? for lm324

[@PraveenKumar-pu4nz]

Please make a video on voltage controlled oscillatiors

[@PraveenKumar-pu4nz]

please somebody reply

[@FunScientifix]

praveen kumar hi

[@TheToillMainn]

The second circuit that's shown. is it possible to modify it to use with a guitar, controlling it's pitch with a pot or something you could use as a "whammy bar" ?

[@DigGil3]

What component values would one use to make the quadrature oscillator to produce less than 100Hz? Is it possible? Is there some kind of 555 timer circuit capable of quadrature oscillation?

[@joaquinvaldez8554]

I built this circuit with a mcp6002 low power op-amp and for some reasons I am getting a triangle wave and I can't fix it any suggestions

[@TeganBurns]

Holy fuck thank you! Straight to the point! Subscribed and liked!! :D

[@marciokoko1]

In this circuit, the second opamp in your quadrature oscillator circuit is assumed to also be connected to 9V & GND, correct? Probably a quad opamp yes?

[@jamescondie2254]

Thanks for the great content. Do you have pointers for building the quadrature oscillator? Am I having trouble because I'm using ua741 op-amps, and have guessed on how to adapt the inverting input voltage?

[@Afrotechmods]

741 op amps are useless. Try an LM324 or better op amp.

[@jamescondie2254]

​@@Afrotechmods I tried again with LM324 it's not perfect but it works! I put a potentiometer at the voltage divider. By adjusting the pot, I can either get good looking peaks, or good looking troughs, but not both. I'm still pretty stoked!

[@Afrotechmods]

@arugulatarsus Not when it is buffered by a TTL IC and viewed with a high bandwidth oscilloscope ;)

[@asymptotichigh5]

New in electronics here... Can I use different capacitors while building the square wave oscillator? (555 timer)

[@formertoddler196]

Okay that Mexican wave caught me off guard enough to make me break my rule of using emoji's 😂

[@omarflores1892]

can i use an oscillator as an inverter for wireless power transmission?

[@HHOhybridBuilder]

Hi!!! Can I use the pin 3 of this 555 oscillator to trigger the gate of N channel MOSFET? ( IRFZ 44) I would like to trickle charge a 2 volt lead acid battery from a 12 volt Battery.The load will be the 2 volt lead acid battery. THANKS

[@arugulatarsus]

Buffered by a ttl IC and viewed on a high freq scope, I am hard pressed to find anything that is not a square wave. Maybe if you add a low pass filter or something... ;) but when you take a probe and look at the crystal you showed as a pic, you get a sin wav. PS. Does your railgun still work?

[@pallavi9183]

nice video

[@yofn1541]

By attaching an antenna to output 3 in the NE555 timer circuit, will we get a radio transmitter at a known freq. ?

[@leerman22]

If it does work it won't be very effective. Radiowaves are usually made with sine waves, not square waves

[@jrM5492]

what is phase locked loop frequency multiplier?

[@braydenpleydell9789]

Can I use a 1uf capacitor I can't find 101 capacitor anywhere on the old boards I have. All I can find are 102, 103, 104 and so on

[@FutureAIDev2015]

Why use a quadrature oscillator instead of a Wein bridge? What's the difference, and are there benefits or drawbacks to both?

[@Totardotech]

Thanks for this video Sir. By the way what is the DC offset definition?

[@rich1051414]

+Totardo Tobing The voltage at the center of the waveform. It should be centered on 0v, if not, whatever its voltage is centered on is the DC offset.

[@manjunathvao3087]

hey,i'm a student of engineering so if i can get 360 degree view of video of sine wave oscillator it would really help

[@goompapa]

full on rockage!!! So when you starting your own radio show?

[@mohanakrishnanp6934]

Thankyou master

[@maxrush206]

How would you make and oscillator for something like a 2.4 GHz radio or a 5 GHz?

[@mrOnlinePolice]

So, is clock oscillator work only with digital processors?

[@seepoowoop]

200,000 subscribers!!!!!

[@Afrotechmods]

+seepoowoop weeeee

[@hamood1234fool]

Will I hear my CPU if I create a 4GHZ reciever? Or its a different kind of thing?

[@kaumohlamonyane272]

Yousef Joseph Yes, if your ears can hear such high frequencies😂

[@backstabingliar]

Can anyone tell me if the Pierce oscillator shown briefly in the video oscillates about 0 volts? Thanks.

[@arugulatarsus]

Afrotech, I love your feed, I punish students by making them watch it when they don't want to use a scope. But a crystal will generate a sin wave.

[@marliaren]

May the Force be with you!