Originally posted by geotron
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is a path to ground for the HV), the reverse rating of the diode will be met
and then it will close. The HV jumps the only other path to ground (gap
to the rod/grid/point to the inductor). When it does that abruptly, it causes
a strong negative suction on the diode's annode that pulls the positive
charge from the LV cap out of it faster than an "ambient" discharge.
You get that suction on that LV cap charge + the gap is ionized from the
HV sufficiently to conduct that LV over the gap.
The moment that happens you get the effect and the inductor charges
and repels or attracts a magnet on a rotor depending on the polarity of the
inductor.





So, everything put in series would just create a series oscillation circuit with the coil and LV Cap, which would just ring for a while and dissipate all energy.


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