Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 57
ter. This cylinder is shown at A inthe figure below. It should be so placed that one end of thecylinder is zVa inches from the corresponding end of the shaft.Make two circular pieces of hard wood 3-16 inch thick, ij4 inchin diameter, with a ^4-inch hole in the center of each. These 46b EASY… … ARMATURE CORE, FINISHED
Electric apparatus and appliances · Electricity
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