. Dental and oral radiography; a textbook for students and practitioners of dentistry . Fig. 20.—Large type high frequency coil. current machine, and an alternating current machine, theunderlying principles of which are shown in Fig. 21. .When used on the direct current, the rotary converter X-EAY MACHIlSrES 57 is set in motion and generates an alternating currentwhich is sent through the primary of the step-np trans-former. This induces a current in the secondary of theproper voltage, but alternating in character. The rectify-ing switch then changes this current from an alternating. sr^CHffo^
. Dental and oral radiography; a textbook for students and practitioners of dentistry . Fig. 20.—Large type high frequency coil. current machine, and an alternating current machine, theunderlying principles of which are shown in Fig. 21. .When used on the direct current, the rotary converter X-EAY MACHIlSrES 57 is set in motion and generates an alternating currentwhich is sent through the primary of the step-np trans-former. This induces a current in the secondary of theproper voltage, but alternating in character. The rectify-ing switch then changes this current from an alternating. sr^CHffo^Ol/S mrofi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradiogr, bookyear1919
