How do you properly add external magnets?

Discussion in 'HO Scale Model Trains' started by mikebalcos, Oct 24, 2008.

  1. mikebalcos

    mikebalcos Member

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    I'm considering to add external magnets to my Athearn F7A's motor. This engine was bought in the 90's and I think it's American made. So how do you properly add the magnets? Should they attract to the magnet inside by positioning the opposite poles, or repel by positioning like poles?
  2. Russ Bellinis

    Russ Bellinis Active Member

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    I think you want the magnets to attract so that the added magnets strengthen the magnetic field.