07-27-2010 06:56 PM
A big if here but if you have a microwave oven headed for the dump then you can destroy...uhdismantle it and get the magnet off of the magnetron. I think that's what it's called. I have 4 of them and all are about 3/8 thick by about 3 in diameter with about a 1 inch hole in the center. I scrounged them off the street and if you need a good magnet there is a source for free...except effort.
07-28-2010 07:22 AM
Another source for magnets are old hard drives. There are 2 rare earth magnets in there for the voice coil head positioner. Usually 1/8 to 3/16 thick curved and very strong. I use one to keep my drill press key attached to the machine, my buddy is left handed so he can swap sides if he is using my shop. I use 1 to hold a clip board on my cabinet and 1 to hold a note pad for the next HW store run. My wife has several she uses on the refrigerator to hold a calendar, shopping lists and coupons
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07-28-2010 01:28 PM
For anyone that is a fisherman that has had a trolling motor go bad, and to costly to repair. Inside surrounding the lower motor casing glued to the inside is one of the most power full magnets that I have found. May take a chisel to get them loose....
TODAY IS THE OLDEST YOU'VE EVER BEEN,
YET AT THE SAME TIME, THE YOUNGEST YOU'LL EVER BE,,, SO MAKE THE BEST OF IT WHILE YOU CAN, AND ENJOY THIS DAY WHILE IT LASTS.
08-11-2010 02:27 PM
If you can find an old stereo speaker where the cones is torn or trashed, harvest the driver magnet. The bigger the speaker, the stronger the magnet.
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08-12-2010 12:44 PM
Old guitar pickups are great, too. The alnico magnets stick to the 'fridge like gangbusters!
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08-12-2010 06:32 PM
Panel meters from old electronic equipment contain magnets that encompasses a wire coil on the meter's needle movement. The size and power of the magnet will of course depend on the physical size of the meter. Bob
08-19-2010 09:42 AM