Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 71
inable thereby withoutthe necessity of employing an immense number of fine wireturns in the secondary. This is effected by carrying themagnetic lines of force for practically the whole of theirpath through soft iron instead of providing—as at present 58 Practical Radiography —only a small length of… … Fig. 21. of anything we are obtaining from coils of ordinaryconstruction, but no very high frequencies may beemployed. Tesla Coils. When Kontgens discovery was first experimentallyverified in this country, the use of a Tesla—or high fre-quency, high tension alternating—current was considereda sine…
Radiography · X-rays
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