"Roentgen" induction coils and other X-ray apparatus (1904)
James G. Biddle Company · Philadelphia : James G. Biddle · leaf 15
mination must be exercised even by the expertwho has had long experience with tubes, and he well knows that atube should never be operated with all the current it is just capableof carrying. The coil is able to give to the tube more energy than it canstand. If the tube were more rugged such great… … Figure 3. Type A Coil for 20 or HO volts Direct Current. THIS standard type of coil is in extensive use for X-Ray workand is operated on direct current,—either 20 volts from bat-tery or motor-generator, or the commercial no volts. It has the Roentgen Self-Starting- Mechanical Interrupter,…
X-rays · Induction coils · Radiography
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