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 70
supported bya block of wood (by means of two glass tubes, h); thewhole is enclosed in a glass cylinder and filled with the Induction Coils and Interrupters 57 special insulating paste. Owing to the small resistance £>fthe secondary, this coil gives very fat sparks, whichwould materially aid in… … Fig. 20. Closed Magnetic Circuit Coil.—This latest type oftransformer aims at higher efficiency by producing from agiven primary current a more powerful magnetic field, agreater inductive effect being obtainable thereby withoutthe necessity of employing an immense number of fine wireturns in the…
Radiography · X-rays
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