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 65
primary and secondary are used,the primary should be made of two or threelayers No. 14 B & S magnet wire, and asecondary of one pound No. 34 B & Smagnet wire. There can be an independentcontact breaker or the coil can be made upsimilar to a one-half inch spark Ruhmkorffsoil (see Chapter… … Fig. 12. engine, and which opens and closes the pri-mary circuit of the induction coil, the sparks Coil Coftstruction. 39 from the secondary winding passing be-tween the points of the igniter in the enginecyHnder. As shown in Fig. 12, the igniteror ignition plug is similar in operation to acoil…
Induction coils · Radiography · X-rays
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