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 137
betweentwo pieces of stout card or board, and im-merse in the molten paraffin. When thor-oughly soaked, remove and put underpressure until cold. It will be found un-desirable to make these with more than adozen pairs of sheets, but to make a num-ber of blocks of that number for readyservice. Fig.… … Fig. 32. with the ball ^ connected to one pole ofthe coil. From the outside tinfoil coating Condensers. Ill T a wire runs to the discharger D Dy whichis in circuit with the secondary coil, 5.The discharger balls D D are carefully ap-proximated until the spark just passes, thislatter point being of…
Induction coils · Radiography · X-rays
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