. Elementary and dental radiography / by Howard Riley Raper . Figure 357.—Special dental X-ray machine. Induction coil type. Size: 15 inches wide, 23 inches deep, 3C inches high. overhead wires are the trolley reels which fasten to the tube. The con-venience of overhead wiring is great. It will be observed that on Fig. 362 there are the usual terminals, viz.,the positive and negative secondary terminals and the dead or false 3-4 APPENDIX. Figure 358.—Special dental X-ray machine. Induction coil type. Size: 30 inches wide, 1 inches deep, 44 inches high. terminal to which the vacuum reducing lev
. Elementary and dental radiography / by Howard Riley Raper . Figure 357.—Special dental X-ray machine. Induction coil type. Size: 15 inches wide, 23 inches deep, 3C inches high. overhead wires are the trolley reels which fasten to the tube. The con-venience of overhead wiring is great. It will be observed that on Fig. 362 there are the usual terminals, viz.,the positive and negative secondary terminals and the dead or false 3-4 APPENDIX. Figure 358.—Special dental X-ray machine. Induction coil type. Size: 30 inches wide, 1 inches deep, 44 inches high. terminal to which the vacuum reducing lever is attached. Back of theseterminals are two others. It is interesting to know what these two extraterminals are for. They are connected directly to the terminals of the secondary winding X-RAY MACHINES 3^5
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