Great video - well done. So nice to see the waveforms and actually explain what's going on.

Thank you for the video ,very well explain, when I was young kid, my father do have Silvertone 1954 Flay Back just to be like a inductor coover in wax. The only way to fix it was covered in diodoran plastic tub however Spark jumping to ground, that was 1967 we’re the only TV in the neighborhood, part was impossible to get, you bring me good memories. Appreciate it.

Why doesn't this have more views? This is top quality content

Great video!! You explain things VERY well. I learned a bunch. Thanks!

Informative video & very well done. Just keep it up. Really appreciate your videos.

GREAT VIDEO!!! LOVED the humor, in addition to the info, which was fairly understandable to this 67yo noobie to electronics, (I'm not counting what I knew 45~50 years ago; since, that was like another lifetime ago...)

honestly I was sceptical I would keep watching for long when I saw the goofiness in your intro (a little bit is funny, but man...), but you surprised me with some impressive knowledge and good explanations.

I love your explanation

Very well explained 👍😊🇮🇪 Like the colour scheme on your scope 👍👍

I have learned many things with this video😊 so Many many thanks for Information and Knowledge ❤❤🎉 keep it Up ❤ and Big a Thumbs upp👍👍👍

Very well explained I'm also an amateur, lot of good stuff you covered thanks.

A well deserved subscription

Thank you, this video is very informative

Using an optocapler was an amazing idea. I liked a nice idea, my friend

informative and entertaining. well done

Learn alot from you. Thank you!

Awesome explanation! You should make more videos about microcontrollers and make projects with explanation like this vid. Thanks!!!

great vide, thanks you very much. Greatting from Poland

A really good video👍

subbed for matching my safety standards related to junkyard science

In a triangle wave the wave is in the linear range while switching from low to high as well as high to low this is the area which creates the heat, in the square wave you have a very fast rise time and dropout time. You have to look at the times between 90% and 10%. So with a square wave very little time is spent in the linear range creating heat, when the rise time and the fall times become too high mosfets can have pretty violent flare up’s or mini explosive destruction.

Really great video . I will sub for good learning ! 👍🏻💪🔥

Electroboom 2.0?

Awesome video; well done and very informative! Have you ever thought about using a two-switch flyback topology for driving a CRT flyback? You should see much cooler MOSFET temps and the other benefit is the back EMF from the flyback is clamped to the supply rails. That way you can get away with lower voltage MOSFETs which typically have lower RDSon parameters. The downside is the need for a GDT or a high-side driver IC, but the added complexity may prove to result in a more reliable circuit.

great explainations. thanks

Thanks for the videos! I'm learning this stuff, but I'm not as advanced in this field like you are. I also play with Arduino and that is one of the reasons I'm interested in this project. I have FBT by: BSC 25-0278Q and I found the pins for input and the ground for the high voltage. I used a fluorescent bulbs' driver and I can get a very small discharge, but I'm interested in much more flames, like you demo here. At about 19:20 time marker, your spikes get much larger - what exactly did you do to achieve this? Have you changed the values on the Arduino sketch? Can you upload the Arduino sketch and exact schema you're using in this video?

You great teacher 😊 bro nice sharing

Would it be a good idea to put a potentiometer to this circuit? Then I could turn the potentiometer until the arc is the biggest, I would basically be tuning the circuit. But the lower resistance the lower frequency and when the ark turns white hot it could blow my transistor.

I have a Sony multi-standard hi-res monitor that died after the flyback transformer failed. I cannot find a replacement part but could I create a replacement function?

RELAXATION OSCILLATOR!! Subbed! XD

TV line output transformer frequency is normally 15,734Hz for NTSC or 15,625Hz for PAL.

That intro made me laugh! My Priorities: 1. Fun 2.learning 3. Safety

Many thanks ! I am glad by finding your presentation . If possible , explain CRT board role w/c found at the inlet of Cathode ray tub of cristal Tv , thanks again !

💥 wasn't expecting that 😅 👍

excellent , tnx !📚📈🔬

Transistors are dielectricaly coupled from base to collector.The most important difference is that for the common collector (that's the one with the load on the emitter side) you'll need a higher drive voltage. While for the common emitter 0.7 V is already enough, for the common collector the voltage must be 0.7 V + the voltage across the load.

It always scares the crap out of me when transistors go bang! Hey this is the most reliable and controllable flyback driver I've ever used 320volt.com/en/uc3844-super-flyback-surucu/ you could tailor it for offline rectified mains by using the internal primary coil and a modern high voltage avalanche MOSFET and upping the current sense resistor to something like 0.5- to 1 ohms (experimentation might be needed but generally a 1 watt sized resistor should get pretty warm at full power but not roasting hot to touch). The UC3845 version runs off 12v, there are 3842 and 3843 chips but they go all the way to 100% duty cycle and this could run the risk of popped mosfets as that inductive snubber needs deadtime to do its thing and reset. That 220nF capacitor would probably need to be a lot smaller with rectified mains, maybe a few tens of nanofarad at most (old CRT boards will have them in the deflection circuit for salvage). Not sure about the 1.5uH inductor but it seems more to do more with timing than anything else. If it's not stable put a 10 ohm resistor in series with that gate turnoff diode or omit altogether as it creates some high dv/dt multi-hundred volt voltage spikes on the drain which can couple back to the gate in via miller capacitance. Keep your scope probe away from the MOSFET drain unless you've got a probe rated for at least the breakdown rating of the MOSFET as if you crank the power pot too high it can start avalanching and clamps the drain voltage to its breakdown rating. eg a 600v avalanche rated fet will clamp voltage spikes across the drain and source to 600v by converting it to heat. To monitor the drain voltage put a high impedance RCD snubber over it, say UF4007 fast recovery diode, 2.2nF 1kV ceramic capacitor and a 4.7-10 megohm resistor, now connect your voltmeter across the capacitor and it will give you the peak drain voltage so you can turn the power down if its close to exceeding the breakdown voltage rating of the MOSFET. Lower switching frequency = higher output voltage for a given number of primary turns and input voltage until the core starts complaining. That big filter cap on the main power rail should be a low ESR type as the peak currents are large, but for rectified 120v it can be much smaller say one of those 220-470uF types you get in PC ATX power supplies. Watch out for inrush current with mains as it could blow your bridge rectifier or trip the breaker, NTC thermistor from an old SMPS should do the trick. Correctly tuned this driver can produce enough output voltage to destroy the flyback so watch out when running it unloaded, also take note of all the earthing/grounding notes as the last thing you want is for a hv spark to find its way back into the driver and house wiring. Obviously with unisolated mains you can't ground the driver, but you can still ground the metal core clamp and return pin. It was designed by jmartis2 here on youtube but let me know if you need any pointers, a tight circuit layout is critical with this one especially the IC, gate drive and current sense loop.

DUDE...... I COULDNT MAKE IT PAST 3:50 BEFORE I QUIT. I HAD TO STOP, LIKE SUBSCRIBE, AND COMMENT ON YOU BEING A QUALITY INSTRUCTOR, THE RARE BREED ON THE INTERNET. YOU ARE THE ABOM79 OR JOE PIE OF ELECTRONICS. im not blowing smoke either. thanks for your work. 🇺🇸☯️♾😎🌵🌴🌲👍😁

nice video thanks for the info. i just started posting videos to

Hey cheers for the video, out of curiousity can microwave transformer n HV cap drive a flyback?

Why do some flybacks have 3 not 2 adjustment screw spots of which can turn?

What is the best way to make stable voltage around 400kv - 1000kv? All those cheap garbage who I bought form aliexpress death after a few seconds working, even the contact times was less than one second to generate single sparks but they are death.. Im looking to one reliable high voltage generators without getting hot, without burning the ice without burning the coils.. only the best was Tesla coil but its make a huge noise

Try triggering your waveform on the scope. Then the scope will adjust its time base automatically to display a waveform stable.

Whenever I do it, everything works for about 3 seconds and the MOSFET burns out and heats up a lot, I don't know why, since the power supply provides a maximum of 2.5 A

Have you (or anyone else reading this) "played around" with using these flyback transformers in a HHO electrolizers? I've run into several "side references" to doing so; but, very little info on how to do it and safety measures needed ~ just that it (supposively, at least) greatly enhances the gas output, due to the HV & HF doing a better job breaking the convalescent bonds...

0:02 Another ElectroBOOM scene 😂😂😂

Extreme High-voltage Transformer

Super explanation, but don't deny, You got a shock of something You didn't expect to happen!? :) Wouldn't You better use a sinewave to drive the transformer?

You deserve more audience, but it seems people prefer watching funny things. That's why I chose not to make videos, but I appreciate yours. Few people go into such details indeed.

hahahahaa make more vids dude , u better than a lot out there on youtube, kudos

Add capacitor to emitter to collector or drain to source

is he a son of mr boom ? "mr electroboom"

I have built single transistor driver with feedback coil. It ran the best so far yet still not impressive. Constructed push pull driver arc is pathetic draws up to 6 amps at 10v and cant be ran for more than 20 seconds. Thinking of making isolated op amp driven two mosfet circuit if i cant figure out trans version. Any tips? I use it to make lichtenburg figures on wood. Ps. Great video. Really liked waveform explanation. Also the difference between trans and mosfet driving requirements.

Dude you can be a university professor

The camera quality 🤌

👍 🙆🏽‍♀️soAfterAll,WeCanDriveTheMosfetInductiveLoadsWithThe555,WithTheRiskOfBurningThe555?

15,625 Hz

Hey bro. I need r&d project. Would u like to help me

ZVS driver is better circuit to drive flyback transformer

Electroboom from walmart:

Electroboom from Wish

Is he Jesse Pinkman!?

How in the flying fk are there only this many likes?!

Thumbs down for using the VAR instead the Trigger... Just kidding. good video bro. Burning stuff is how you learn when you reach the limit. But, seriously, for the sake of humanity use the Triggers.

There is absolutely no AC involved in a flyback converter circuit in terms of delivering useful power. Current flow is always unidirectional in both the input and output windings. You can get ringing that is AC but it doesn't play a role in power delivery. It is pretty clear to me that he does not understand how a flyback circuit works.

copy of electro Boom 😂

When you use "profane" language and "swear" you express that you bleong to a "juncky" class. I watched your video to the end nd was surprized if it was necessary for you to swear. I did not dislike your video, but you have to think about it.

Wrong They also work with pulsed DC.