What to Salvage From an Old Microwave

[@Greg_Chase]

The fan motor type which you tried to recall at time 16:45 thereabouts - it's a *_single phase, shaded pole induction motor_* Most induction motors - those used in devices requiring lots of mechanical torque - cannot use single phase AC because the torque in just one phase occurs once per cycle of the AC, not enough torque to spin the motor's rotor through a full 360 degrees, and not enough to provide a 'starting torque' to actually get the rotor spinning to begin with. A three-phase induction motor has three 110vac inputs, that are offset by 120 degree. Phase A applies magnetic torque on the rotor and it rotates a bit (120 rotational degrees to be exact), towards the Phase B electromagnet, which applies torque to the rotor for the next 120 degrees of rotation. So we have: - Phase A turned the rotor from 0 degrees to 120 rotational degrees - Phase B turned the rotor through 120 to 240 degrees of rotation - then the Phase C electromagnet applies magnetic torque to the rotor and rotates it from 240 degrees back to 0 degrees So a single phase motor seems like it wouldn't even work, since one electromagnet would need to turn the rotor through a full 360 degrees. SHADED POLE SINGLE PHASE MOTOR The 'shaded pole' comes to the rescue. On the metal plate laminations (the thin plates stuck together) you'll find two small copper windings. They are physically separated from the Phase 1 electromagnet, so although everyone knows a changing magnetic field (like the one produced in the Phase 1 electromagnet) will induce a magnetic field in any nearby closed loop of wire, the small copper loop is far enough away from the electromagnet that there is a phase delay created by that physical separation. So the Phase 1 electromagnet comes on and exerts magnetic torque on the rotor (which is only turning a lightweight fan blade, not much of a load) - and then a short delay later, that small copper loop - that 'shaded pole' - develops its own magnetic field via induction, and it exerts a magnetic torque on the rotor to keep it spinning. Single phase shaded-pole induction motors have weak torque, nothing like the strength and magnetic torque from three full-size electromagnetics positioned 120 degrees apart. So single phase shaded pole induction motors can only be used for light duty, like spinning a fan blade. .

[@michaelvoorhees5978]

Can you repeat that please?

[@Greg_Chase]

@@michaelvoorhees5978 in laymans terms, "not enough torque"

[@pierrelombaard820]

Good text book explaination

[@DannyTillotson]

Good video but for other people point out we need to discharge the capacitor safely immediately before doing anything else. 👍

[@gyrgrls]

Most all MW caps have built-in bleeders or an external resistor across the terminals. Only the really old microwaves are dangerous when unplugged. But it's still better to be safe than sorry, or dead.

[@gyrgrls]

10:44 No, no, NO! That brass mesh in an RF gasket and is grounded. It is necessary for effective transmission of the RF energy into the cavity. That metal cap with the hole in it is actually the antenna! That hole in the wall is for antenna protrusion into the waveguide.

[@walthodgson5780]

There's a sizeable chunk of copper inside that magnetron element, and those fins are aluminum. And the beryllium insulators need to go to hazardous e-waste, not the landfill.

[@markbrown1609]

good vid Bro, is that little feller at 6:27 playing with a full deck? LOL

[@0Logan05]

Dude, Your Lens is Rad🤙🏻.. Great Depth of field.. Like a film… Audio could use some EQ(Softening).. But it’s really cool

[@gyrgrls]

02:40 What I have done is pick up a cheap regular Torx bit, and drill the center to a depth of a few millimeters. A cold chisel also comes in handy when wrecking od microwave ovens, as sometimes pieces are riveted together.

[@oldladmanmp4]

I love seeing someone else who likes disassembling microwaves!

[@JatPhenshllem]

Oh, man, same here!

[@TCS86]

Lots of micro switches too. The ceramic coupling on top of the magnetron is TOXIC. Breathe that dust if broken & ☠️

[@tyrzxv]

You don't necessarily die, you can get a nasty uncurable disease called Berylliosis and besides the constant pain, you basically will never breathe well the rest of your life. Torture before slow suffocation.

[@michaelvoorhees5978]

I died from breathing it once

[@oldladmanmp4]

What was the set up fir that plasma generator and magnet? Did you have one of the leads touching the magnet?

[@kocreations4582]

One lead on the outside of the magnet, one in the center, once I’m able to get a lathe I plan on doing a cool experiment with this set up, but the driver is a circuit I got on eBay, if you think that’s something you’d be interested in I’ll do a video on the circuit

[@kocreations4582]

Let me know

[@walthodgson5780]

You can usually snap that security nub off with a flat tip screwdriver. Then it's a normal Torx bit to remove.

[@gyrgrls]

The capacitors can be ganged in order to build an awesome rail gun. Those fans make nice bathroom exhaust fans, as well.

[@subramanianr7206]

I love your presentation. You know about the deadly shock hazard lurking in the capacitor, some high voltage stuff like the Jacob's ladder, plasma generation with the EHT in the CRT TV, Beryllium oxide and it's danger if the powder is inhaled, magnetron tube and the microwave getting deflected in to the chamber through the wave guide and dispersion by the fan blades etc., Great. The MOT contains the middle winding for the filament of the magnetron tube. The cooling fan is run by the shunt induction motor. The skit between 6.20-6.45 is really good. Thanks again.

[@michaelvoorhees5978]

Huh?

[@110americalovingpatriot2]

An angle grinder is one of my favorite tools.

[@ravebrave8866]

110% hahahhahahahahha I suppose not with horns on the head

[@davenrees9822]

AT 11:35.... Seeing that grinder scared the sh*t out of me... It is Beryllium Oxide and can give you Lung cancer.... very easily..... so yea.... be careful.. You even knew that 🤦‍♂️ (For referencee, I've done research as well, but I've also recently taken apart 15 microwaves. The research was so that I don't die from this 🤷🏽‍♂️)

[@tyrzxv]

The Beryllium if inhaled as dust, can cause a disease known as Berylliosis which is uncurable and nasty. Yea, not worth your ability to breathe

[@7-Aniya]

You forgot the thermal protection unit.

[@Tennessee4Jesus]

Hahahaha came to learn oh well 🤪 glad some men on same brain level because I sure was not. Damn 🤣

[@richwrightrocks]

Very cool

[@rkaag99]

where are the radioactive bits in this device? Ya know, the stuff you might NOT want to go airborn with the grinder etc.

[@kocreations4582]

In the magnetron

[@tyrzxv]

@@kocreations4582 the ceramic stem that connects to the magnetron contains Beryllium and if broken and you inhale the dust, you can get a nasty uncurable disease called Berylliosis. You will never breathe right and have constant pain.

[@combycat]

Is the insulator really beryllium??? Some people say it’s alumina and some people say it’s only beryllium in the really early high power microwave ovens. I just don’t know what to think.

[@canineconundrum]

Lmao That skit between 6:26 and 6:48 was hilarious.

[@familyrob9762]

Thank you brother . 🙏

[@blackwidows570]

What is the "super illegal" thing in that clip you showed? Link to that video?

[@kocreations4582]

I’ll link the video when I get off work but the channel is called keystone science, it was a microwave gun, idk if I said it was illegal but it definitely is dangerous,

[@blackwidows570]

@@kocreations4582 I could give a fuck less if it's illegal, just intrigued. And yes you said it's 'very illegal' allegedly.

[@blackwidows570]

@@kocreations4582 thank you for the reply brother! Earned a like and sub. Lmk when you have that link!

[@kocreations4582]

Well if I suppose I was thinking that if you were to use the microwave gun for what I would use it for, it would indeed be illegal and thanks for the sub man! Much appreciated

[@kocreations4582]

Keystone science's Microwave gun kzbin.info/www/bejne/bmHOdaFqq86nldk

[@sdavis7916]

My friend, fun video, a couple thoughts. A plywood workbench to put the microwave on while disassembling. Some words of caution at least while you show your lichtenberg machine, two handed model isn't too safe.. Entertaining ace appreciated.

[@royal011]

115V (vols), 60Hz (you are confused with voltage and frequency)! You are saying 115-116 Hertz, which is not correct.

[@theevilvixen6282]

For those tamper proof Allens I just get a screwdriver or something and wedge it in there and snap off that little nub in the middle. Then a regular Allen wrench works fine

[@sdavis7916]

By the way... Would you like a 120,000 uf capacitor? I've got a box of those babies..

[@JatPhenshllem]

I sure as hell would

[@michaelvoorhees5978]

And then you disappear.....I would have paid you$500 for one

[@horus2369]

dude, microwaves are high frequency, which are short and rapid, on the infrared spectrum. Long waves are on the ultra end of the spectrum, Think Bass Guitar, Bass Drum

[@kocreations4582]

U should watch electro booms video on microwaves, it gives a better presentation of what I was talking about

[@chuckmaddison2924]

Use for plasma motor.

[@ScantPear]

Scrap the metal don’t throw it away…

[@Findmylimit]

thanks bro

[@Professor_ramification]

You sound like Garfield

[@PUN15H3R_OG]

You are hilarious lol entertaining

[@blatantmisconception]

Loved you as Hawkeye

[@bedfordshiremodeller4491]

Not the same actor dude

[@YouWillDoAsYouAreTold]

great video +1 sub

[@murraychadwick9362]

Thanks for the info and laugh's 😂

[@jeffreywyke368]

The first thing you called a "capacitor" is NOT A CAPACITOR. It is the heater for the magnetron!! The second (smaller) unit IS A CAPACITOR.

[@kocreations4582]

No shit! I put it up on the screen that I was mistaken! Then I corrected myself 30 secs later. Way to be constructive dumbass! Do something more with your life! Seriously

[@ronniemcqueen7076]

Thank you for the info was very helpful.. after I learnt about those capacitors I am very fortunate I never fried my dumbass but I try to always be careful around certain items tho I never understood the magnitude of power in those it’s by the Grace of God I’m here now.. I freaked out when I knew what could have happened to me just going in on something like that..

[@enlightenedpreparingep4006]

I got one of those bit kits from Ace Hardware as well but have only used it once to remove my alcohol monitoring anklet 😂

[@hugosoosaar]

Hi! Is it possible to order any of your work?

[@draco7422]

Nice t shirt 😆😆

[@Nick-79]

Ur arm was awfully close to that grinder blade a few times at 11:58 😳😬

[@kocreations4582]

I live life on the edge! Also..... I never noticed that till just now when you pointed that out lol

[@Nick-79]

@@kocreations4582 yeah I actually almost died once, I worked in a welding factory and the grinder blade broke, missed me by inches

[@JatPhenshllem]

@@Nick-79 Daaamn. Tell me more

[@anoainindonesia4595]

When your not made transmitter radio and reciver simple from transformer magnetron

[@JatPhenshllem]

Huh?

[@davenrees9822]

not done watching your video yet.... but no.. the first thing you do, before you touch anything, is discharge it.... (at 3:28 YOU LAUGH ABOUT IT🤣🤣🤣) BUT BEFORE THAT.... Learn what things are first and do some research 🤦‍♂️

[@guymandude999]

This is like a workplace safety 'don't be like this careless fellow' vhs tape they show you at a new job. 12:38 rubs the berilium oxide powder with the finger of his glove, then it goes off camera to his face... I'm assuming to see what it smells like. Hope you're doing ok, bud 😐

[@kocreations4582]

Still alive!! I think it’s only toxic if broken though,

[@michaelvoorhees5978]

​@@kocreations4582you think... so let's take a chance on it lol

[@ujawalikar3128]

be my friend...

[@kocreations4582]

Ok! Lol

[@reneboymaster]

NOT CONVINCING

[@kocreations4582]

What do ya mean?

[@jeffroid_tv]

Just grind those funky screw heads off!!! Problem Solved!!!

[@arielignacio9234]

omg you are melting

[@duanemediak9675]

HE SHOULD APPOLOGIZE FORVTHE LAME LOUD INTRO

[@levinolan636]

The fans work great to Install in the pants so when someone farts, it blows the gas out the pants and helps flush in fresh air to the arse.

[@enlightenedpreparingep4006]

I got one of those bit kits from Ace Hardware as well but have only used it once to remove my alcohol monitoring anklet 😂

[@enlightenedpreparingep4006]

I got one of those bit kits from Ace Hardware as well but have only used it once to remove my alcohol monitoring anklet 😂

[@JatPhenshllem]

This is copied, right?