Safely Taking Apart a Microwave
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- เผยแพร่เมื่อ 11 ก.ค. 2012
- Chris shows us how to safely harvest parts from old microwaves that can be reused, while pointing out what you should never try to extract due to threat of death. Then paul walks through how some of the parts work.
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I may have missed it, but Discharging the capacitor, even if the microwave has not been used for months, is a fundamental check which could greatly extend your life expectancy.
Much agreed, and thank you so much for saying this... 👍👍
@@Outside-In. And the magnetron many uses yes ,but best off left alone indeed, found this disassemble hello from down under 2024 here , know it was uploaded 4 yrs ago, may I add the capacitor will one flash ash , but to drain them not an issue 1 needs to know how , tis easy if you know how, if not leave the covers on the microwave in my humble opinion , hello from down under, many usable parts indeed the magnetron not be one of them well not quite but better left untouched by people scrapping microwaves , 1 flash thou be ash unless you know what you be doing the wave forms hide in the circuit, 4000 W and same amperage somewhat bites when it gains a path 2 earth. But I digress imagine the people putting these magnetron's 2gether and the ceramic dust and other chemicals including beryllium one breath forget about making old bones that are basically 1 breath by scraping or scratching , not instant death but maybe somewhere down the line after inhalation, I will see myself out good people, but before I do leave the internals of magnetrons alone one way ticket .
Thank you for the information about scraping microwaves SAFELY, very much appreciated. I do feel the need to add that the capacitor should be safely shorted and drained first, as it could still be charged up to high voltage.
Way late to the party but I appreciate the information. Mum tossed out the microwave just recently and I was just stood there like "There's some quality copper in here, I wonder how easy it'd be to get that", took the outer casing off and had a look (using insulated tools and gloves of course) but then realised I didn't know what I was doing.
From what I've read and seen so far the essential thing seems to be "Be careful, discharge the capacitors just in case they're still holding a dangerous charge, and don't touch the magnetron more than you have to and certainly don't dismantle it because the beryllium will kill you"
Honestly I'm surprised there wasn't a label on it saying something like "Do not open, you will die".
Hey, thanks for saving my life! Was seconds from cracking into our beloved LG unit to replace the magnetron and decided to check TH-cam for pointers real quick-like. You put the fear of god in me so I found a local countertop MV expert (easier said than done) and he did it + the turntable motor for $100. Money well spent, I'd say.
For the cost of a cup of coffee a day, you can help buy a microphone for Kidwell.
I recently disassembled a Microwave. I'm a technician, so I used common sense and was as careful as possible. I kept the Magnetron, Transformer, Fan, and the Capacitor. I also desoldered the 7-Segment Display. I just kept them for future projects.
Actually, glad you did take apart the magnetron apart. A lot of people just want to see what is inside of things, so you doing it shows there really isn't much, and also pointed out the dangerous parts so they can stay away from it.
Don't forget they do store capacitance charge and it needs to be properly discharge I learned this from the military and itt u can use the circuit board
"this is where you can get beryllium and it will give you cancer" Close but no, Its beryllia(beryllium oxide) not elemental Beryllium. As for the cancer aspect thats not the issue with beryllia (wile it is carcinogenic its a fairly mild carcinogen), The issue with beryllia is Berylliosis (inhalation of beryllia can cause chronic allergic reaction in the lungs, generally only a huge concern in large volumes or long term exposure).
nikushim666 still not touching it.
I'm only sixteen, I have made an electric arc furnace out of mots, i'm still alive, but I have been shocked by a nst before. Dads was an engineer he had no problem, he just said don't come crying to me. Sure its dangerous but you have to learn some way.
+sin4422 yeah, I also started with MOTs because its really hard to get an NST where I live, and I agree that learning on your own mistakes is really effective, (that is how I learned to always dicharge capacitors before working on things), but as far as MOTs go, you wont get to make that many mistakes, so here i kinda agree with Chris, better to start with something that won't kill you as easily.
Microwave oven caps typically have bleed resistors internally. These did. (I actually think there's a regulation in the US requiring them) Granted, we should have pointed that out in the video.
For smaller coils, quiet a lot of people like to mod the microwave fan motor to run as an synchronized spark gap, i typically like to save them for such things :)
Kidwell wasn't wearing a microphone, we had to go to Room mics on the cameras.
will the magnetron kill me if i dont bother it or can it kill me just from being near it [will being exposed to it enough to take the transformer out dangerous]
Thanks guys informative and funny as heck!
I've been interested in using the MuMetal that is suppose to be shielding in a microwave. Is Mumetal shield in there?
It may be a good idea to hang a shotgun mic above the set (maybe even on the rail the overhead camera runs on, or something else) so you don't have to use crappy camera audio
I see someone else already mentioned the nice coil-in-tube heating elements you can find in combi's.
Personally, I suspect if you need to phase MOTs for more current it's probably time to think about a different transformer. Center tap out of phase sounds like a quick way to make a tasty cloud of smoke though, between overvolt and lack of good internal current limiting.
Me being only 14 decided to take this apart without any knowledge and I unscrewed the transformer and heard a super loud bang when it fell. I also touched the capacitor not knowing the high voltage it has
Might the sheet metal cover, flattened out, make for a ground plane for a small to mid size tesla coil? (if the ground you have is too hard to pound in a proper RF ground rod)
"Whatever you do don't do this, under any circumstances, you will die".
...
"so this is how you take this apart"...
good video - tip: mic your guest speakers
Ok got a question for you. So beryllia is dangerous. Now problem is I happen to be a welder and I TIG weld all the time. The gas cups on a TIG welder look just like the ceramic in the magnetron. I have been looking around to see if the gas cups also contain beryllia with no luck. I have had cups shatter, brake, and been ground down to fit a weld. Does any one know if there is beryllia in the gas cup of a TIG welder? I don't want to come down with a case of Berylliosis.
Hi thanks for the video. Question: When you r servicing the microwave is it safe to test it with the top off. From the microwaves of the magnetron that is. From UK
The only thing holding that in is the magnet. Pull
it hard. It will pop off.
I JUST bought a new microwave and already noticed little roaches in the window and digital display. I live in Florida and am an extremely clean person, considering roaches love food and electricity this is basically inevitable. My question is, can I open all these parts up to safely clean? And is there an agent I can put inside that will deter roaches and not compromise my health when cooking food?
if you take the MOT out, would the oven part still be good?
You forgot the little motor that spins the plate. It's VERY slow but has a lot of torque to it. Can you do a demonstration on combining MOT's? I'd building an arc welder out of 5, 2 in series, 2 in parallel and 1 as a ballast but want more info before trying it. I also built a Tesla coil like a year ago. Love high voltage, hate the shocks though.
Does that cap contain HV like in tv set, even after its turned off for a while?
Chris, i have a bolt strip on top of the microwave, which mounts under the cabinet over the range. I cut the bolt in the cabinet to remove microwavw, how do i take the the cut bolt out of the microwave and fix the stripped component?
The magnetron on my year-old microwave died and the warranty repair tech let me keep the magnets and that braided brass ring. One of the magnets broke into 3 pieces but it and the full ring are both strong magnets. I'm not sure if the other one broke in removal or if it was reason for the magnetron's failure. Are you sure that braided ring isn't gold?
honestly i am soo worried, i have token apart some magnetron and one of then the ceramic was broken, but i still got the magnets out of it, back then i had no clue about the beryllium in it, well now i am really worried about it, so tell me more about this
If you short out the double capacitor first...to make sure there’s no stored voltage....you also mentioned about the chemicals inside the magnetron.....would we be thinking of hydrogen residue....?....
Okay. To everyone who is talking about discharging the HV capacitor, hear this: watch the video again and you will see a 10-megaohm resistor in parallel with the capacitor in the schematic diagram that came with the microwave. Every microwave capacitor I have taken apart (quite a few) also has a safety resistor built into the can. This means that unless you are taking the cap out thirty seconds after making a last bag of popcorn, you are TOTALLY SAFE!!
TIG nozzles are usually made of Aluminum Oxide. Sometimes they're made of Pyrex, Quartz, or some thing called Lava
Pr beryllium oxide
I know this is a dumb question but, is it safe to touch the MOT while not being connected to anything?
It surely is safe as long as it is not powered . They require power to run so it is safe to touch them as long as they are not connected to mains voltage . But if you have been experimenting with it hooked up to the microwave capacitor it is always a good idea to discharge your capacitor first before doing anything with your MOT hooked up to it .
i think the idea was to show people what not to mess with inside the magnetron. Ive heard first hand of people dying from exposure to the borillium, quick and painful!
What abou discharging the cap?
Oh yeah, something else I wanted to ask ... what's the proper way to dispose of the magnetron? I'm sure there's gotta be a safer option than just chucking them in a trash can, but they don't exactly have "zomgcarcinogenic!" disposal bins next to the battery and oil ones.
I suppose the local authority would know, though that risk some interesting questions.
There's usually disposal rules on lead acids and mercury carriers and Be is certainly up there with them.
Although, there is a SLIGHT chance that the resistor might not be there on some really old microwave OR it's failed. You probably will be ok...but it's just something to be aware of.
I took one apart to find a megaohm resistor between the cap and the ground. Probably a built in safety measure for repairing it. Definitely not a diode because the resistance was the same both ways. I still hit it with the "jesus stick" just to make sure :D
interesting tool choice.
what is that antenna to at 10:17
If you have to ask you shouldn't be playing with MOTs yet, stick to NSTs for now and live longer.
what is the coil near to the motor?
Thank you! :)
Why’s the heck the most important part of the video got all the bang bang bang
Why don't you guys mount a semi-permenant shot-gun mic in the set? Perhaps putting one up by the macro-cam could improve audio in these circumstances? As I don't think you can hide a PZM on the table... "this is how" *bang! drops microwave* "you remove *BANG! drops again*
Magnetrons are only dangerous when turned on and the insulators are only dangerous if crushed
what are you teaching by tossing things around? just want to make sure I didnt miss something in shop class lol
Well I guess I'm pretty much screwed from that magnetron I hacksawed open. Wonderful...
The copper cavities in it look rather pretty though.
If you didnt crush the insulators, you are perfectly safe that is the only dangerous part
Whar does Chris say at 16:45? (if anyone knows)
sounded like current goes in the direction of the earth
or urinal lol it's hard to say
is there radiation inside the microwave?
so funny with the the frikin' goat sound that says censored :)
audio goes screwy when Kidwell joins in.
good god, this guys savage
beryllium oxide ceramic. you do NOT wanna be messing with that stuff :(
I loved the video thanks. I did cringe a little however at 30:00 when he rubbed his eyes after playing with the beryllium from the magnetron.
Aghast I would like to add because I didn't see it done in the video and I've seen a lot of kids commenting. DE-ENERGIZE the capacitors. If it was recently plugged in they can give you a 2k volt shock that could cause death.
There is tools for safely discharging electric charge. My dad and his friend who service amps and guitars use it to discharge the electricity in the amp capacitors. Tube capacitors in old amps contain enough electricity to kill you out right. It is possible
@@aghast2495 They hold the charge for a very long time also.
Aghast it’s only 0.95uF so it’s unlikely of death. Do capacitance to joule calculations.
What is the picture on the white shirt?
It's a Physics Package.
Your "Schematic" used to be known simply as a "Wiring Diagram".
There is nothing safe about this video. 6kV capacitor not discharged, but handling it with your bare hands!
You didn’t short your cap bro lol.
The lightbulb inside a microwave runs off of 120 volts in North America and 240 volts in the rest of the world if you buy a microwave from the United Kingdom and plug it in in the United States or Canada then the microwave won't power on because of different voltage requirements
Terrible audio when both are performing their tasks.
Especially since there are no sound absorbables in the room (carpet/curtains/furniture).
what about the magnet....can we take it without danger
No
lmao "OH BLOODY HELL"
radio yes
How old is the first Microwave? 80s?
about 1925, google microvave radar, cos i'm too lazy.
"this is the bit that will kill you, dead, painfully and slowly" *grabs it with hand and starts wiggling it*. I love videos that assume I'm not a dribbling moron that will try everything I see on the Internet.
The microwave-college-campus connection: Biggest truth ever. I get 2, 3 microwaves every other month.....cause i live 2 blocks from major US university. And I am not the only one...There is a small band of MOT seekers around here.
Don't worry I cant do anything yet, just curious...
Chris' comments about magnetrons can not be over stated. beryllium oxide ceramics are are nasty stuff. frankly I think Pauls tear down of the tube probably shouldnt be shown. I understand people want to see them but it would be better done under Pauls direct supervision at the lab. As Chris said there really isnt anything worth a crap in the tube... off my soap box, How do I get a Shirt like Paul was wearing?
turntable motor useful ......
very educational good video
U could hardly hear too much noise
You're right, here's a better video. How's this? th-cam.com/video/MHurAqUB7PY/w-d-xo.html
Problem Solved. You should be getting a package of long security bits in the mail (between 7/18 and 7/23, they say)
no i have had enough
I can't believe you have had the better of 23.5 k views and only 195 thumbs up.
I guess the were so rapt they forgot. I almost did. I love your style. Awesome!
Very well done.
I just want to mention that there are also glass magnetron tubes, but they are rare, as i am a tube collector i had one of those glass magnetron tubes, but i traded it away. also im just watching this for kicks and giggles, i have taken microwaves apart before, and a mot isn't the largest transformer in my arsenal of high voltage sources. also i have been working with high voltage for a long time, so i know what im doing. Just proving Chris wrong that only HV newbies what this video. no offense.
I dont think this microwave i have has a transformer is this normal
I think it has a power supply onstead of a transformer
Just leave the magatron in
i rather enjoy this video.
Ok, it was a hot day, so the usual self-censoring language filter was malfunctioning.
(I have no recollection saying anything untoward, but apparently....)
Kidwell Nest time try a flat head down the side of the top plate on the magnetron, you can just pry it off and the magnet on the top are only stuck down with Magnetism, nest time try a flat head under the lower edge of the magnet and just lift it off .
Chris, Kidwell did fine with the magnetron dismantle, now all the kids you just taught how to kill them selfs with HV wont do it with beryllium :D
watch my vid and you'll see a Magnetron with screws in it watch?v=W7vNoIK9Cgo
the microwave was a gold star witch is now lg haha
soo kool
United Nuclear ftw :)
rotfl. .. funny and very informative..
This guy is like my electronic practice teacher :D A real murderer
Valentin .Ivanov 🤣✊🏾
taking the door off the microwave .... rotfl
I saw that move coming
We need microwave fans
Lol I almost killed myself
I'm 13 and I'm still alive. =P
BAD! Don't tell people how to take it apart! Argh. Even safety can't make up for these things...