Morton, Edward Reginald, 1867- · New York : E.B. Treat & Co. · leaf 86
f. Figure 24 shows the general arrangement of thesecondary circuit. 1, 2 and 3 show a series spark-gap, apoint and plate spark-gap, and a valve tube, asalternative methods of suppressing the inverse current. In some sets, for instantaneous radiography, as manyas three valve tubes are joined across… … I )] MHIiamperemeter Equivalent. Spark Gap Fig. 24. It will be noticed that the equivalent spark-gap is soplaced as to be in parallel with the tube only, and willalways indicate its resistance, when adjusted, withoutbeing complicated by the resistance of the rectifyingdevice that may be in use.…