Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery (1901)
Schneider, Norman H. (Norman Hugh) · New York : Spon & Chamberlain ; London : E. & F.N. Spon · leaf 94
ing vibrator (Fig. 19) is thetendency of the spring to vibrate, as itwere, sinusoidally. This causes an irregu-larity in the rate of the vibrations, whichaffects the discharge of the coil very con-siderably. By far the better plan is to usea very short thick spring riveted to an Contact Breakers.…
Induction coils · Radiography · X-rays
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