James G. Biddle Company · Philadelphia : James G. Biddle · leaf 17
he sharpness of definition due to the absence of thesecondary radiation as heretofore noted. The style of the 18 inch coil is the same as that of the 15 inch,and like it is furnished in polished mahogany finish unless otherwisedesired. We guarantee these coils to be of the best possible… … Fig. 6. R. F. Universal Regulating Tube. With water cooling attachment. There are no tubes made at the present time which can be expec-ted to withstand the heaviest output of our large coils for any greatlength of time. Should some one of the large tubes having a heavy anode of largethermal…
X-rays · Induction coils · Radiography
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