Dental and oral radiography : a text book for students and practitioners of dentistry (1916)
McCoy, James David · St. Louis : Mosby · leaf 64
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 … Fig. 23.Interrupterless transformer adapted for use in the dental x-ray laboratory.
Radiography, Dental · X-rays · Teeth · Mouth
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