Dental and oral radiography : a text book for students and practitioners of dentistry (1916)
McCoy, James David · St. Louis : Mosby · leaf 63
Fie. 21. The working principles of the interrupterless transformer are hereshown. The synchronous motor used to operate the rectifying switch of thealternating current machine may also be used as a rotary converter wherethe direct current is desired for other purposes in the laboratory. 60 DENTAL… … Fig. 22.Interrupterless transformer adapted for use in the dental x-ray laboratory. machine, the underlying- principles of which areshown in Fig. 21. When used on the direct current, the rotary X-RAY MACHINES 61
Radiography, Dental · X-rays · Teeth · Mouth
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