Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 184
be a sourceof amusement to the mechanically inclined youth. All thedifficult parts of the machine may be obtained by dismantlingan old brass clock. A wealth of material is available fromsuch a source in the form of wheels, pinions, shafts and6trips of brass and of steel. A side view of the engine… … U, each of the arms being 3% inches long, measured from theextreme bottom. On each arm wind a coil of insulated wire,so as to form a bobbin 2 inches long and 1% inches in diam-eter. These had better be made of number 24 double cottoncovered magnet wire of which about 4 ounces will be re-quired.…
Electric apparatus and appliances · Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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