Morton, Edward Reginald, 1867- · New York : E.B. Treat & Co. · leaf 94
h coil works quite INDUCTION COILS. 69 smoothly on a 15-inch or 18-inch coil, and in fact, care-fully used, the life of a tube is greater with a big coilthan with a small one. Thus, while more expensive atfirst, large coils are more economical in running, and,what is the most important point of… … Fig. 28. Portable X-ray Outfit in use. A chair is usedto clamp the tube-holder to. With regard to the current for working the coil, for allordinary purposes a continuous current of about onehundred volts is to be preferred. If a continuous current from the main street supply isavailable, this…
