Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 23
a band saw driven by power be used, such as almost every fairsized carpenter shop should possess. It can be done, however,by means of an ordinary key-hole saw. 14 EASY ELECTRICAL EXPERIMENTS. Before mounting the ring upon its base, wind in the grooveupon its circumference eight turns of No. 16… … TANGENT GALVANOMETER long. These should be fastened so that their upper edges passexactly through the center of the ring. Procure an ordinary pocket compass about ij4 inches in diam-eter and cut grooves in the middle of the last mentioned strips, EASY ELECTRICAL EXPERIMENTS. i$ with the center of…
Electric apparatus and appliances · Electricity
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