Rollins, William Herbert, 1852-1929 · Boston : The University Press · leaf 730
NOTE 179 B — FIGURE 1—AN ARRANGEMENTOF THE MULTIPLE SERIES SPARK-GAPS. AND LEYDENS OF AN INTERCHANGEABLESECONDARY INDUCTION COIL Plate 139 … NOTE 179 B — FIGURE 2 —AN ARRANGEMENTOF A TESLA COIL ON AN OPEN CIRCUITHIGH VOLTAGE TRANSFORMER Plate 140 r-TTT;
X-rays · Phototherapy
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