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how does a microwave work and how can i make one? Answered

please, i want to learn how to construct a mini microwave so i need to know the basics, how can i do this?

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user
frollard (author)2012-11-04


Inside the magnetron is very dangerous chemicals, and outside is dangerous voltages.  It's not something you should build.

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user
steveastrouk (author)frollard2012-11-04

What dangerous chemicals ?

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user

Uh... I think EngineerGuy Bill said the filament was made out of thoriated tungsten. Thorium is radioactive, so, uh... you probably would not want to eat the filament.
http://en.wikipedia.org/wiki/Decay_chain#Thorium_series

Other than that I don't know. Copper. Vacuum. Electrons?  Loose electrons can  dangerous. ;-)

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user

Yeah, there's less thoriated tungsten in there than the average TIG welding electrode - and I don't think they're a notifiable hazard.

There MAY be issues if the ceramics are beryllia based and you powder them, and you're allergic or sensitised to it.

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frollard (author)steveastrouk2012-11-05

I can't quote directly without looking it up again. A problem is people cut them open and the particles end up airborne and kit really wrecks some hobbyist days.

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Jack A Lopez (author)frollard2012-11-04

Wow! Good video. Did you notice? That Engineer Guy (r) is fast like Bruce Lee!

But he can only move like that when he's not explaining something.
;-)

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frollard (author)Jack A Lopez2012-11-04

EngineerGuy Bill is awesome, simply put. Never noticed him move too fast...I guess that's the point :D

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rickharris (author)2012-11-04

1. http://en.wikipedia.org/wiki/Cavity_magnetron

A microwave used a magnetron to produce very short wavelength (cms ) radio wave at a relatively high power level - 100's of watts.

2. You need to make one see wiki link

3. You need a high voltages power supply to feed it.

4. you need a suitably designed enclosure to make sure the microwaves don't escape and cook you and yours.

5. You can;t do it at home.

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