. Radiography and radio-therapeutics . IIDVA-C. Fig. Fig. 30. for radiographic work, as the wave must be of a pulsating nature, totallyon the one side of the zero potential line, to make the current obtain this characteristic a mechanical rectifying device is is seen in Fig. 30, C. the wave. On its downward slope it intersectswith the zero hne. At this point it is necessary to reverse the electricalconductive paths so as to take the next wave or alternation and transposeit to position E, making it unidirectional. Figs. 31 and 32 give a diagrammatic idea of th
. Radiography and radio-therapeutics . IIDVA-C. Fig. Fig. 30. for radiographic work, as the wave must be of a pulsating nature, totallyon the one side of the zero potential line, to make the current obtain this characteristic a mechanical rectifying device is is seen in Fig. 30, C. the wave. On its downward slope it intersectswith the zero hne. At this point it is necessary to reverse the electricalconductive paths so as to take the next wave or alternation and transposeit to position E, making it unidirectional. Figs. 31 and 32 give a diagrammatic idea of the rectifying is the mica disc, G and H are two copper commutator stripsfastened to the periphery of the disc opposite each other and occupyinga little more space than a quadrant. J and K are high-tensionalternatmg current brushes. L and M are the brushes which receivethe rectified current. For one complete cycle, or two alternations, the discmakes half a revolution. Fig. 31, wave form C, shows the first alterna-tion during this period ; the dis
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