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Microwave Ovens & Farraday Cages
Posted:
Fri Apr 10, 2015 6:58 pmby Shazbot57
Not sure if this is the right place so if not please feel free to move it but: Anyone know if 1) Microwave ovens can be repaired economically, or if they are worth repairing or even scrapping, and 2) did I read somewhere they can be used as a faraday cage, or is that not the best choice for a f.c.? Thanks...
Microwave Ovens & Farraday cages
Posted:
Fri Apr 10, 2015 7:00 pmby Shazbot57
Not sure if this is the right place so if not please feel free to move it but: Anyone know if 1) Microwave ovens can be repaired economically, or if they are worth repairing or even scrapping, and 2) did I read somewhere they can be used as a faraday cage, or is that not the best choice for a f.c.? Thanks...
Re: Microwave Ovens & Farraday Cages
Posted:
Fri Apr 10, 2015 7:44 pmby ThePowersThatBe
Threads merged. Please don't start multiple threads about the same thing.
Re: Microwave Ovens & Farraday Cages
Posted:
Sat Apr 11, 2015 9:20 amby AdamsSamoa
I scrap them.... google scraping a microwave
Re: Microwave Ovens & Farraday Cages
Posted:
Mon Apr 20, 2015 4:10 pmby TXSTARFIRE
I have repaired a small microwave before. It had a small ceramic fuze that had blown. I was able to get a replacement at Radio Shack. I dont believe that the fuze was designed to be user serviceable as I had to disassemble the unit somewhat to replace it. Anyway, sometimes it is a simple thing that goes wrong and it might be repairable.
tt
Re: Microwave Ovens & Farraday Cages
Posted:
Mon Apr 20, 2015 6:38 pmby 68Camaro
It is a type of faraday cage at least at microwave frequencies, but I don't know that the shielding is good for EMP frequencies. Good thought/question, but not sure of the answer.
Re: Microwave Ovens & Farraday Cages
Posted:
Mon Apr 20, 2015 10:28 pmby Engineer
I'm not sure if this applies everywhere, but the local dumps and scrap yards won't take microwaves unless they're disassembled or you pay $20 for them to pull out the magnetron.
I tore one apart just to avoid the fee, so any scrap money it yields is a bonus.
Re: Microwave Ovens & Farraday Cages
Posted:
Tue Apr 21, 2015 11:42 amby hobo finds
Here in AZ they can go as is, but I break them down (easy) and then add small items in the door and seal shut. Beware of the pink ring on the magnetron that is where the bad stuff is...
Re: Microwave Ovens & Farraday Cages
Posted:
Tue Apr 21, 2015 3:46 pmby TXSTARFIRE
Is there something hazardous in a microwave? If so, what is it?
tt
Re: Microwave Ovens & Farraday Cages
Posted:
Tue Apr 21, 2015 4:22 pmby hobo finds
beryllium oxide in that pink ring on the magnetron. Don't crush and breath it
Re: Microwave Ovens & Farraday Cages
Posted:
Wed Apr 22, 2015 11:28 amby TXSTARFIRE
Thanks, thats good to know.
tt
Re: Microwave Ovens & Farraday Cages
Posted:
Thu Apr 23, 2015 5:46 pmby Mossy
Easier and more convenient to make a faraday cage. Use window screen. Staple from the inside out as conductors going into the screened area can carry radio signals, as can anything conductive touching the shell from the inside. Be sure to have good contact between the sides, maybe use conductive paste. This is a temporary structure.
Do not bother to ground, just make certain of a full enclosure wih no cracks.
A metal box will also work, and last longer. Smooth and flat sides, not roofing with channels.
Remember: line with an insulator so nothing conductive can touch the shell from the inside.