Willoughby, George Alonzo, 1894- · Peoria, Ill. : Manual Arts Press · leaf 65
d Plug.—The plug A (Fig. 40),which fits into the receptacle, consists also of two metallicparts insulated from each other—one on the end of the plugand the other on its side. These two parts are connected tothe two wires in the cord. When this plug is screwed farenough into the receptacle to bring… … HEATER-CIRCUIT TROUBLES 63
Electricity · Electrical engineering
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