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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 found.]

By A. Allin

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