[Boatanchors] Need magnetic shield for shaded pole motor

[J. Forster]

Both muffin fans and brushless DC muffin fans are an inverted design. The
rotors are on the outside. This results in much better shielding of the H
fields.

Hence the suggestion.

-John

================




> All motors operate via changing magnetic fields, so a DC motor isn't a
> sure fix, but a different motor might produce a slightly smaller problem.
> It sounds like the problem is a minor one, so that perhaps only a minor
> improvement is needed. The sheet steel experiment, like the coffee can
> metal, seems worth trying to see if it helps to any degree. BTW, is the
> current motor a brushed motor or an induction motor?
>
> Wayne
> WB4OGM
>
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