Dodge, Mary Mapes, 1830-1905 · New York : Scribner · leaf 567
FIG. 24. AN INTERRUPTER In order to get a shock from this coil, it willbe necessary to have a pair of handles and acurrent-interrupter. The handles can be madefrom two pieces of tin rolled into the form ofcylinders, to which wires may be soldered. If the shock is too intense, it can be weak-ened by…
Children's literature
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