Fig. 16.—Plan of Coil. CB, Adjusting screw of contact-breaker. H, Hammer of contact-breaker.P, Primary. S, Secondary. G, Soft iron core. C, Condenser. SG, Secondaryterminals. R, Battery. a useful addition to a coil as a reserve in case of the failure of themechanical break. An ordinary 12-inch coil…
X-rays · Radiography
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