"Roentgen" induction coils and other X-ray apparatus (1904)
James G. Biddle Company · Philadelphia : James G. Biddle · leaf 36
bes is at a minimum as well as thecurrent consumed from the service mains. The economy of maintenance accompanying the use of a motor-generator over that obtained with storage batteries should be seri-ously considered when the mechanical interrupter is installed. Prices. B3070. To operate from no… … HOLTZER-CABOT ELECTRIC CO. BOSTON, MASS. Figure 17. Alternating Current Motor-Generators. A SATISFACTORY and reliable alternating current motor-generator is necessary when the alternating current is to beused in conjunction with a mechanical or other direct current inter-rupter. We recommend the…
X-rays · Induction coils · Radiography
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