PC Fan Generator

[geotron]

It appears that a similar but lesser effect is produced with the
larger coil as shown, so I'll likely resume with my original goal
of surrounding it with pickup coils, or instead build another one
in its place for later testing on that theory and use this one as
a temporary oscillator.

The precise reason evades me as to how this effect was being produced
though with the small radiant gap event, so it will also be added to the
list of things for experimentation.