Sunday, 9 July 2017

dc - How to re-magnetize a permenent magnet motor of small size (model railroad)?


I have several small DC motors where if I place an extra magnet to back-up the included magnet, the performance seems to improve significantly.


These motors are 30-40 years old & their performance is degraded. I've been told that it's possible to restore their performance by re-magnetizing the magnets.


How can this be done?




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