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Demonstration Cell - Variable Spacing Plate Cell

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Nothing better than answering your own questions ....  ::)  An SCR will stay in the on status as long as the current does not fall below the holding current, ... even if the gate pulses are removed. Thus the seen effect that the SCR does not split the rectified AC wave into parts since during the wave there is still current so the SCR will not switch off. To make this work either the 8XA circuit is not complete (missing turning of circuit or second SCR) or there must be a GTO Thyristor used instead of an SCR. Any opinions on this??


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