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 109
Fig. 24. Ruhmkorff coils, are by no means of recentdate. Poggendorff made use of such priorto 1859, ^^^ noted the diminished sparkingat the contact breaker and increased effectin the secondary circuit. Mr. D. McFarlan Moore, whose experi- 82 Contact Breakers. ments in vacimm tube lighting have… … i Contact Breakers. 83 the chief merit was that the contacts werebroken in a vacuum. The sparking wasalmost ehminated, and the suddenness ofthe break of contact so accentuated as tomaterially improve the output of an induc-tion coil. A perusal of his patents, copiesof which may be procured through…
Induction coils · Radiography · X-rays
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