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 92
206 3875.61 34 0063 8381 260 4888.49 35 00561 10560 328 6163.97 36 005 13306 414 7770.81 CHAPTER 11. CONTACT BREAKERS. The simple form of contact breaker al-ready described is useful up to a certain point, but it hasR MM disadvantages. A Its rate of vibra-tion is only vari-able through nar-row… … Fig. i8. 66 Contact Breakers, simple spring break is shown in Fig,18. R \^ the soft iron armature ; 5, thespring ; 67, check-nut which holds the ad-justing screw A from becoming loose ; T, asecond adjusting screw used to tightenthe spring and so raise its rate of vibra-tion ; K is the base to which…
Induction coils · Radiography · X-rays
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