Dental and oral radiography : a text book for students and practitioners of dentistry (1916)
McCoy, James David · St. Louis : Mosby · leaf 72
e. Coil tubes and transformer tubes are similarin construction but not in vacuum (see Fig. 26).Coil tubes are exhausted to a much higher degree REQUISITES OF DENTAL X-RAY LABORATORY 69 of vacuum in order to lessen the tendency for in-verse current, and give a high degree of penetra-tion. The… … Fig. 28. The high frequency tube differs slightly in con-struction from the coil and transformer tubes ow-ing to the fact that the high frequency current isnot uni-directional. Therefore, a means must beresorted to for cutting away or disposing of onewave of the alternating current. This is…
Radiography, Dental · X-rays · Teeth · Mouth
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
