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 129
Practical Radiography- one or more of these sections into circuit. Figs. 51 and 52illustrate two of the most modern types in which theresistance wires have been replaced by resistance bandsembedded in an insulating layer of enamel or arranged atthe back of iron plates ; this arrangement secures… … Front. Fig. 51. Back. indestructible and mechanically stronger than enamelrheostats. Besides a rheostat of some form or other, each installationon the supply circuit must contain a single or doublepole fuse. This very simple apparatus consistsessentially of a piece of wire or stripmade of an easily…
Radiography · X-rays
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