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 177
Fig. 46. … Fig. 47. Fig. 45 shows a solution tube to be filledwith solution of sulphate of quinine, etc. Fig. 46 shows three exhausted tubes ar-ranged in series. Currents in l^aciio. 151 A is of uranium glass, and glows darkgreen ; B of English glass, showing a bluehue, and C oi soft German glass, glowingwith…
Induction coils · Radiography · X-rays
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