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Re: More RFI filter testing...
Terry Fritz wrote:
> My latest theory of the minute is....
>
> The pulse seems completely unrelated to the primary coil or other
primary
> parts. It appears that the pulse is caused by the actual arc at the spark
> gap. The heavy wiring in that area, just serves as an antenna to transmit
> these 1GHz+ signals. I suspect the gap stores energy as capacitance across
> the gap. When conduction starts, the arc becomes a super high power high
> frequency transmitter for about 20nS. Apparently, this initial arc can
> occur by itself without starting the primary circuit into conduction. Ie.
> it can occur so fast the primary circuit will be unaffected by the fast
> local arc of the gap. I must assume this is common to any spark gap system
> and not just Tesla coils.
Try ferrite beads around the primary conductor, as close as possible
to the gap.
Experimenting with electrostatics, I have noticed a similar phenomenon.
When a gap is not close enough for "solid" sparks, "weak" sparks can
occur.
they do not discharge the terminals completely, have a "pof" sound, and
are visible in the dark as "plumes" attached to the positive terminal.
Do your measurements show a drop in the voltage across the gap terminals
when these bursts occur?
Antonio Carlos M. de Queiroz