The Positive Terminal Is Not Even Connected — Murakami-Gray

3,399 views · Published 18 July 2009 · 3:38 · Indexed 5 October 2026

Channel: Aaron Murakami · 2009 · Science & Technology

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A short bench demonstration on the plasma ignition circuit. A 24 volt bank of two 7 amp hour batteries is put in place of the small capacitors normally used, and the discharge is shown sparking in three places at once: between the high voltage rods, at the rod carrying the supply, and at the grid. The point of the demonstration is the wiring: the pack's negative is on the common ground and its positive terminal is not connected to anything at all, with only a voltmeter across it, and the pack still takes a charge. He shows the resting voltage before and after and lets the color change in the discharge be seen as the capacitor is charged.

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Posted 2009-07-18.

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