United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 66
BOOSTERVOL TME TER ——| /^\V r -FILAMENT TRANSFORMER —FILAMENT CONTROLFILAMENT SWITCH COLLFUNGS COMMUTATOR- SLIDINGRESISTANCE j point switch--gJ^HHHH^ L. IGNITION COIL-. SPARK PLUG,GAS ENGINE … TRANSFORMER GENERATORI LECTOR fl ij-O-fIN6S IJffl BREAKERSOLENOID ?—■ — Fig. 27. U. S. Army Portable Unit set up with self-cooling and self-rectifyingCoolidge tube. 59 60 X-RAY MANUAL—U. S. ARMY Owing to the drop in line voltage upon closing theoperating switch it is necessary to secure a…
