High Voltage Jumping Backwards Into a Diode Bank

3,714 views · Published 4 July 2009 · 6:01 · Indexed 27 September 2026

Channel: Aaron Murakami · 2009 · Science & Technology

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A bench demonstration on the Gray tube arrangement. The high voltage output of an ignition coil is taken to the high voltage rod, jumps a gap to a low voltage rod backed by a bank of six reversed 1,000 volt diodes, and from there into a capacitor bank. He addresses the objection directly: many people believe nothing can jump backwards into the diodes, and he shows the capacitor bank climbing from around four volts to twenty six while the gap is being triggered. He then charges the same bank to over 1,100 volts and shows the discharge still crossing the gap, making the point that the high voltage finds ground regardless of what potential is already sitting there, because both sides share a common ground. The inductor is out of circuit throughout.

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Posted 2009-07-04.

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