Building a X-ray powersupply

Warning: do not attempt the actions seen in this video!
In today's video, I'll be making a high-voltage DC X-ray power supply which ill be using for some future X-ray projects!
Enjoy! :)
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[@jordanhill4265]

When you rewound your primary it’s likely that you adjusted the number of turns around the core which especially on a flyback will have a big difference on output voltage. As an example if the transformer had a 1:100 winding ratio then 10V on the input would be 10KV on the output if you put 2 windings on then it’s effectively halved to 1:50 and you’d only get 5KV at your same 10V input. So less turns = more voltage but also increases the risk of internal arcing of the transformer and overcurrent from the ZVS.

[@derrekvanee4567]

Thays what I thought too. A diy veriac cos be a fun project 🤔

[@barriehemming1189]

Completely agree

[@samueldavies646]

Also generally less than 4 turns isn't really enough primary inductance for zvs

[@samueldavies646]

​@@derrekvanee4567variac aren't normally used for high voltage wdym

[@justinbanks2380]

"well, to make sure we don't fuck up anything..." Best segue ever! 😂

[@chemistryofquestionablequa6252]

I'm not really an electronics or physics guy, but you made this really interesting.

[@Ma_X64]

In printers, the high voltage (from a corotron, for example) is divided by a very high-resistance divider to a value that is suitable for the PWM controller. Then a buffer op-amp with unity gain is installed to match the impedance and then op-amp output goes to the feedback input of the PWM controller. And the PWM controller, in turn, controls the power supply of the high-voltage converter, or directly (through a driver actually) its switching elements (MOSFETs or IGBTs). This allows you to set the output voltage with sufficient accuracy.

[@TilmanBaumann]

The effect on the oil and sand is amazing

[@AlbertoMelappioni]

It would be useful to add a resistor for high voltage (and low inductance) to the output of the multiplier. By limiting the current a little, it extends the life of the diodes and in case of electrical discharges it prevents dangerous inductive spikes in the circuit.

[@JoTheVeteran]

Really cool stuff. I'm at this point trying to figure out how to power an old motor, and make an switch for it, and you're making this instead? Crazy!

[@PyrotechnicalScience]

If you saw how many times I’ve failed at this then you would change your mind lol.

[@bobbybruh9723]

Try using a flyback from a gas grill igniter, the battery operated ones, not the piezo ones. Drive with zvs and feed output into multiplier, scary loud output from multiplier

[@firefox1136]

Nice psu But using a buck converter to power an LED kinda broke me, using a series resistor would have been much easier. Also add some filtering before the ZVS as the "DC" from the rectifier will be pulsed. A capacitor will help to get a more smooth DC and maybe more output.

[@jamescabral6912]

So refreshing not to see a video on KZbin where I feel dumber than when I went into it.

[@trtlphnx]

Thanx For The Info!!!

[@maxhouseman3129]

Despite I am designing electronics for living, I am still afraid of building high kV sources at home.

[@chuckcrunch1]

i'm getting deja vu again

[@Th3Fr0gL1ck3r]

That coronal discharge to the pliers!!

[@theelectronmachines]

3:20 my thoughts exactly when i built my own multiplier hahaha what x ray tube do you plan on using? i have used a $10 2x2A rectifier tube with no joke about 100kV across it and it did not burn out / overheat the heater filament. to use a very cheap tube, u need to have a high exposure time on your camera to really brighten the image to get decent scans

[@PyrotechnicalScience]

I have both the 2x2A tube and a mammogram X-ray tube. I haven’t pushed more than like 30kv on the 2x2A but got ok radiographs out. The mammogram tube on the other hand will make a nice radiograph in half a second.

[@BubblesAdventures17]

you should make a video on the synthesis of pure N20

[@TestEric]

Amazing job, I may build something similar.

[@algorithminc.8850]

Nice. Really fun stuff. Cheers

[@daviddavidson2357]

No current limiting? Unless you're running a very powerful X-ray tube (which has dangers of its own) you may as well limit the current. Makes it less likely to kill you should something go wrong.

[@jtcustomknives]

Your one step away from building electrobooms magic wand lol

[@jasonkloss8977]

Can you X-ray me? My leg has been broken for about a year and I can’t afford going to a hospital

[@S.park.y]

X-rays won’t heal the bone mate..

[@jasonkloss8977]

@@S.park.y like you even know what you’re talking about, idk about the land down under but X-rays heal us just fine up here

[@SwampMonster1]

@@jasonkloss8977 I asked my doctor this today and dr.kangaroo told me you’re hopping mad mate.

[@shivenprashar1427]

Pretty sus

[@uncle_thulhu]

Does the sand pick up the charge to align into patterns because it's silicon, or would any similar granular substance do the same thing?

[@PyrotechnicalScience]

Any substance really

[@user255]

Your numbers are way off due expecting breakdown voltage of air to be the relevant number (3 kV/mm). Due Townsend avalanche you will see arching with bit over 1 kV/mm.

[@zaprodk]

I agree. Rule of thumb is 1kV/mm, no more.

[@cooldude7301]

Omg he's gonna have to rebuild the whole thing to make his x-ray tube work now

[@PyrotechnicalScience]

the Townsend effect shouldn’t effect initial arc over length. Although due to non standard conditions voltage breakdown may be in the 2kv/mm range with the spheres. Cant tell for sure though without a true high voltage probe.

[@user255]

@@PyrotechnicalScience Yes, with smooth spheres you can expect more than 1 kV/mm, but 3 kV/mm is still way too much.

[@user255]

@@cooldude7301 Probably not. You can get x-rays (soft x-rays) with much lower voltage, if the tube is good. However the produced x-rays may not be suitable for example medical imaging.

[@cryptik2205]

So do you believe that if i were to say connect a high powered taser to a vacuum tube or X-ray tube that could in turn make a sort of hand held x-ray machine? Theoretically

[@basic_proboi]

plz make a zvs circuit plz

[@user-vc5sg5xh2j]

you probably should have led in the front

[@thevoidedwarranty]

I thought it was 1kv per 1mm 🤔

[@freexe392]

Nice video ,Man how much windings do you have on the primary coil and how much on the secondary in the diy flyback?

[@janradlinski3787]

Why is it needed to put ZVS in oil? It is on the lower voltage side. I saw people on the internet driving flyback transformers from those aliexpress ZVS without putting them in oil

[@PyrotechnicalScience]

Not needed, I just threw it in.

[@robertbryan8870]

I am trying to build the high Voltage x-ray power supply and need about 100KVp for 5 secords, I find most of the parts but was unable to find the exact one in the video, that is, the flyback transformer, can anyone tell me where I can get the same flyback thats in the video. Thanks

[@PyrotechnicalScience]

I made it myself with a TV fly back core and some magnet wire. You can find AC fly backs on eBay that will also work.

[@brainprism88]

can you write all component you used?

[@imfloridano5448]

Hmm how crop circles are made possibly.

[@cyclonite811]

How many turns did you use for the flyback?

[@PyrotechnicalScience]

Couldn’t tell ya, just wrapped it until it looked good lol

[@justindeane1512]

I really want to put my hand in it

[@derrekvanee4567]

Brah, where are you located? I seen your 5 htp > aeration video and went hey cool but your xray vac tube seal team 6 arc arc arc setup and this and your humor and geeky-ness-is-esses... Are you my. long lost brother? Ive been wanting to build some fun explosions and ire 😎 Edit: and hho... Srsly have I been cloned? With arduino things and more... Esit2: rockets, hydrazine, deadly pigments, yep you have my dna 1:1 da komrad! Very nice how much? And your hydrazine let's make a hydrazine rocket BUT with *the pointiest tip ever to scare the enemy* maybe I got 23&Free DNA cloned from some fence or statue I touched hmm... 🤔

[@glasslinger]

Effect of commenting while on LSD! :)

[@MrChiwah]

Have you ever zapped your zipper?

[@chuxxsss]

Nice work, I wonder if you could push the current up to say 1 to 2 amps? Did you fill the electronics box with wax? Do you have your set up diagram in block from?

[@samueldavies646]

If you want high current high voltage just use Mots but be careful they'll prob kill you

[@cberge8]

What type of oil is best to use for this? Generic mineral oil, or is there a specialty oil that should be used?

[@PyrotechnicalScience]

Just normal mineral oil works well!

[@jonasbalcar4473]

Please do it, nice videos btw..

[@justinbanks2380]

3:41 contact Honeywell and see if they'd pay you for some non sleep inducing ads for their products, 😂😂😂

[@alo1236546]

Rent a house nearby substation 220kv

[@trenthighvoltage]

Sorry but that is not 90kV. 3kv per mm would be with sharp points like nails, and probably in higher humidity and temp conditions. With the balls of steel it looks like probably 25-30mm, and it could very well be about 20kV or so.

[@Atomic_Chemist]

I always go by 1kv/mm and this seems to be accurate just using my 10kv ignition transformer.

[@fabriziobrutti1205]

Ohhh no, Breeeeze!! It's the opposite!

[@fabriziobrutti1205]

(tho I think it's not 90kV, it's more about 30kV.... 90kV might have been in the first test

[@TilmanBaumann]

Did you literally fill the entire case with wax?

[@PyrotechnicalScience]

Yep, without it the power supply would instantly self destruct

[@TilmanBaumann]

@@PyrotechnicalScience isn't that melting a land leaking immediately? That case doesn't exactly look watertight

[@PyrotechnicalScience]

I taped it up then filled it

[@jozefbubez6116]

As well as the obvious danger of high-voltage, X-rays misused can lead to cancer and mutation.

[@ejonesss]

smack!!!! we dont swear on youtube

[@HajileMalach]

🤡

[@cooldude7301]

Is the high voltage dangerous to be near?

[@PyrotechnicalScience]

5ma is technically not lethal but you’d get quite the shock

[@TheJustinJ]

A police duty taser is

[@Jkauppa]

why not direct hv transformer to dc hv fbr-cap

[@Jkauppa]

and I dont mean tesla coil arc

[@Jkauppa]

have you tried edm (electric discharge machining) in the same vegetable oil, yes etching by arc welding inside a liquid coolant insulating medium, and not water

[@Jkauppa]

try static electric charge high potential hair riser generator, whatever type, even the drop bucket version lol

[@Jkauppa]

why would you fly back, lol

[@Jkauppa]

thats nonsense :)

[@petevenuti7355]

Ionic breeze... In oil 🤪! Are you an only child? I would think you were, otherwise you wouldn't be able to have something like that around without some death or destruction involved.