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 74
lar coils be operated, one with a rapid vi-brator and the other with a slow vibrator,other things being equal, the slow vibratorwill give the greatest spark length. Again, * We do not attempt to reconcile this quotation with the enormousestimates of spark potential. Coil Construction. 47 the… … Fig. 13. 13 shows a reproduction from a photographof a spark 32 inches long, generated by thecoil shown on the frontispiece. It is easy to take a coil, and by snappingthe vibrator contacts together a few times aspark of thin bluish character will jump 48 Coil Construction. across a gap, of length…
Induction coils · Radiography · X-rays
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