Discarded microwave oven: There are two large doughnut-shaped magnets (~6cm outside diameter with ~2cm diameter center hole) that can be removed from the oven's magnetron. WATCH OUT: Discharge the large capacitor before working within the case of a microwave oven.
Radio Shack Cat. No. 64-1895
Package of two small rare earth magnets that are ideal for levitation experiments.
In the Denver, Colorado, region: (Out of stock as of September, 2003!)
K&K Surplus ( http://www.kksurplus.com/ )
8381 Brighton Rd.
Commerce City, CO 80022
(1/2 Mile South of the Mile High Flea Market)
phone: (303) 287-7195
fax: (303) 287-7885
Ask about the very strong magnet sets that sell for $15 each.
Applied Magnets: http://magnet4less.com/
Gaussboys NdFeB magnets: http://www.gaussboys.com/
K&J Magnetics: NdFeB magnets: http://www.kjmagnetics.com
Amazing Magnets: NdFeB magnets
John Bauer: For special orders of very strong magnets.
Forcefield: NdFeB magnets: A great source for rare earth magnets.
Dowling Magnet: A large variety of magnets and magnet kits.
VAC Magnetics Corporation
Edition 2000 Catalog Appendix: Page 40, Page41, Page 42
Back to Fun with Physics