Use Of Permanent Magnet In A.C. To D.C. Rectifer
In the May, 1916, issue, there was described a magnetic rectifier, and
finding it rather troublesome to have to use batteries for the permanent
field excitation, I found that if a steel bar-magnet was substituted
instead of the electro-magnet, the device would work as well and save the
trouble and cost of the batteries.
[Note: By referring to the May. 1916, issue, full description unit be
By A. Allin
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