Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 47
The iron block shown at B is 1% inches wide, 1 inch thick and2Y2 inches long. Here again the amateur may, if necessary, usetwo blocks of iron instead of one, if a piece of iron of the right 38 EASY ELECTRICAL EXPERIMENTS. shape be not availably but the dimensions and construction givenare thought…
Electric apparatus and appliances · Electricity
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