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By: Mehdi Sadaghdar

Hi today. I'm going to do something that will not Shock you or me or anyone for that matter. I'm going to take my super dangerous microwave oven Transformer and reduce its output voltage to maybe zero, but instead get thousands of amps of current. Hopefully, but what can give us a bit more confidence is learning the skill we need.

Using my sponsor skillshare where you can learn from experts, click on the link in the description to get a 30-day free trial. Well, I mean other people have done it before, but it seems I'm the only one who's missing a very high current source of AC power. So let's do it. now.

this is the primary of the Transformer and that's the secondary with maybe 20 times more windings than the primary and well basically changes the 120 volt AC input to like over 200 2 000 volts and I've seen a lot of people basically just cut the secondary wires and Destroy them. but I don't want to just destroy some nice wires. If I can cut the core itself, that would be preferable. My table is being covered in dust.

Maybe this is not an indoor activity? I'll be back. there we go. I Just cut the weld on the sides of the iron core and just banged it off like this. Now I can pull the windings out like so thank you did they glue it in Hammer Hammer Not budging at all.

The layers of the core are falling apart, but the windings are not coming out. Primaries loose. Here's the primary secondary. It's out.

and here is the secondary. Hopefully it's out in one pistol. Maybe I can put it back? Well, my core is in shambles, but it's fine. After two hours of banging and smashing and sanding the glues away, the primary is finally in.

and if you just put this on top, you're done. You know? let's just turn it on and see if there is any craziness. Oh my. God What a sound.

Wow. Look, the magnetic field is holding its tight. Let's disconnect this. There we go.

Okay, well it seems beside the noise, he should be working fine. How does it work without the top on? It seems all these plates are just pushing each other apart. Maybe I'll glue them later so they are less noisy. Ah, this is a strong magnet.

Now what happens if we run a single turn of wire through the Transformer Okay, so we should have some voltage here, which is not much. Now What happens if you short the output? My wires are smoking, getting hot, and it's too noisy to let me crazy glue all these plates back together? Okay, the whole thing is crazy glued together. Okay, let's Power It Up So quiet now. Wow.

Good gluing helps. Let's read the output voltage of a single turn around 1.1 So this means the number of primary turns is around 110 roughly. Let's see how many million amps you'll get shorting our single turn. Wow! Gets hot quick.

Let's hold it with this. 90 amps and it's going down slowly. Things are heating up. Okay, well this is not the millions of amps I Was hoping.

Let's check the resistance of my wire I'll run 10 m DC through it with my power supply and read the voltage around 0.2 volts. So 0.2 divided by 10 is 20 Milli Ohms and 1.1 volt AC output of the single turn divided by 20 Milli Ohms is 55 amps. We were getting 90 amps. Maybe the resistance of this wire is actually lower.
Nevertheless, it's not a thousand amps I wanted. which means I have to raise the voltage across the same wire. So I did two turns now and now. the voltage we get should be double.

Yeah. 2.2 volts ac. Okay, how many amps do we get? Now if we short this 160 140, it's dropping. Oh my God.

I think I'm burning the whole thing 160 amps. But it was dropping because as we know, the resistance increase as the copper gets hot and the thing is melted together now. jeez I guess I have to cut it there. we go.

Molten nicely together. Garbage. Hmm I need thicker wire and even higher voltage? Oh, you may ask me, maybe you are such a dummy. You already have 2 000 volts.

Why didn't you just short that for millions of amps? Where is my green screen? See, the resistance of my Transformer secondary is around 60 ohms. which means even if I short it at 2000 volts, I won't get anywhere more than 33 amps. And that's not the only problem because my secondary is around 20 times more winding than the primary. 33 amps at the output means around 660 amps from the input or 79 000 Watts.

So in order to draw a lot of current from the secondary, it has to have much fewer number of turns compared to primary so that the primary current doesn't exceed my maximum allowed 15 amps. But that results in a much lower output voltage. which means our secondary wire must have a very small resistance not to limit the output current I Need thick wires I Remember I had something thick eight gauge super thick. Okay, let's measure the short circuit current.

still. Two secondary turns. oh my God What's going on? It melted. my clamp did it draw 800 amps I have to see it for myself.

Okay, just quick before everything melts. 500 Oh my God What happened? Oh it melted again. My thick wire is gone. but I got over 500 amps.

hahaha. There you go. Poor wire garbage. So I went and bought the thickest wire available.

This baby is a 3-0 Awagawg gauge wire capable of doing 200 amps continuous and a fusing current of 2700 amps for 10 seconds. Its length is 135 centimeters which means its resistance is around 270 micro ohms. Very small so if a single turn can put one volt of EMF across it, it means if I short circuit it I would be able to send more than 3600 amps through it. although the Transformer is not super efficient.

so I expect less. so we try to bend this and send it through the Transformer Yeah, wow, this is terrible whatever. Now gonna short circuit its output. Funny thing is it's solo resistance that the highest point of resistance is where the wires will contact.

So I'll wrap the short circuit with copper wire to make the best contact possible. Here's the short circuit: I Don't know if this thing can accurately measure that high of a current, but let's give it a try. What did it say? Four thousand? Wow. The context is definitely getting hot.
I can melt things with it I have a spoon in my stash. Let's see, of course, with the increase of the output resistance due to adding the spoon I expect the current to be much less. Okay, how much is the current? I See some smoke? Who's smoking? Is it warm? Yeah. Oh geez.

if I increase the output voltage by doubling the number of turns, I can double the current through the spoon and melt it. This only this wire was easier to bend. I think I have to break off this top again, bend the wire, put it in and glue it back on there two turns would it fit in there red skin? it's in. I Finally shoved it in although all the core plates disconnected.

Now what? Let's just turn it on like this. It's probably going to be super noisy. It's okay. I'll replace the noise with some elevator music.

Let's see if we can melt some spoon. It scared the out of me. Okay, the key is not to be afraid of the Sparks they're just some low voltage High current Sparks Not harmful to me and this will show one millivolt per amp so we can measure the current. My spoon absolutely melted.

Oh my. God Alarm scared me. Yeah, and of course let's melt an obligatory penny that didn't work. Look at this rubbish.

I Thought the pity was still made of copper. It's not. It's just copper plated. What is it like zinc or something? Yep, I guess it is copper plated Zinc as it should be.

Let's see how much current it takes to fuse a 10 gauge wire open. That didn't take long now. I'm thinking if you have a hard time picking a lock, you can melt the sh out of it. It was too much to hold.

Ah, not the easiest way to lock a pick. I guess I mean pick a lock. So I guess I have the capability now to generate a few thousand amps. Now what is its use for me? Hmm I guess I can create a Melting Pot to melt metal in it.

It's not of a use for me I Guess hey Electronics is not for electronic use only. We provide Power and capability and tools to everyone. You're such generous gods! Similar to professionals at my Sponsor Skillshare, a community of experts sharing their skills and knowledge around many different subjects like programming, video creation and editing. Electronics Creativity and More! First thousand people to join using my link in the description can enjoy learning from these classes.

We with a one month trial that gives you full access to everything skillshare. You can finish many classes in this period already that makes you want to keep going. I Finished the class logo design with Draplin by Aaron grappling a while back. he designs complex Graphics so effortlessly.

it's so satisfying which ended up in me designing my own forbidden electric guitar. Share Skillshare also has hundreds of career focused classes you can use to reinvent your goals and yourself which can be intimidating, but what's better than a professional giving you tips on starting small, being productive of building your own brand and more? You want to find more time to do the things you enjoy. Take Productivity and Time Management class. You want to make creativity a full-time job like I did.
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15 thoughts on “Making millions of amps of current”
  1. Avataaar/Circle Created with python_avatars Geneo1986 says:

    The E.M.P from this video fried every electronic in my house… Thanks ElectroBoom!

  2. Avataaar/Circle Created with python_avatars Robert Earl Reynolds says:


  3. Avataaar/Circle Created with python_avatars BitSmythe says:

    I’m surprised you didn’t use a power strip with a switch. Glad you’re still alive (and not BBQ’d) to make more dangerous, educational videos!

  4. Avataaar/Circle Created with python_avatars Abdallh Elmasry says:

    we missed you mahdy ❤❤❤❤

  5. Avataaar/Circle Created with python_avatars Jishnu Dutta says:

    today we see mehi burn pvc and get cancer/ chlorine gas fun

  6. Avataaar/Circle Created with python_avatars Big Jaz says:

    Your arm hairs are magnificent.

  7. Avataaar/Circle Created with python_avatars Kalepsis says:

    How are you not dead yet? It's certainly not for lack of trying.

  8. Avataaar/Circle Created with python_avatars Joey Justin says:


  9. Avataaar/Circle Created with python_avatars Autosmo says:

    Waffle House has found it’s new host

  10. Avataaar/Circle Created with python_avatars Mona Mi says:

    Investing in crypto now should be in every wise individuals list, in some months time you'll be ecstatic with the decision you made today.

  11. Avataaar/Circle Created with python_avatars a nuke says:

    NICE! now, make a 4 turn using 0.3 gauge.

  12. Avataaar/Circle Created with python_avatars Sam Miller says:

    Is that the letter V or a square root symbol?

  13. Avataaar/Circle Created with python_avatars Patrick Jones says:

    Best videos ever… 13 minutes flew by.

  14. Avataaar/Circle Created with python_avatars VenificusL says:

    It is the unhinged science that always gets me.

  15. Avataaar/Circle Created with python_avatars LogieD says:

    Can you use this concept to make an induction heater?

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