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 160
FiG. 40. mitted through the prism, the color whichpredominates, in the flame will predomi-nate in its spectrum. The combination ofa prism and tubes for observing theseeffects is a spectroscope (Fig. 41). Theshort fat spark from the Rhumkorff coil ismost useful in this work. The electrodes spectrum… … Fig. 41. passed and viewed through the spectro-scope. The spectroscope is shown in connec-tion with the coil in Fig. 41. ^ is the 134 Spectrum Analysis. aperture in the screen through which therays from the metal burning at the dis-charger balls D D passes. The lens at Lis used to view these rays…
Induction coils · Radiography · X-rays
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