Original poster: Kurt Schraner <k.schraner@xxxxxxxxxxx>
Hi Bob, Malcolm, Dr.Resonance,
Thanks, Bob, for the theory viewpoint analysis of the problem, - it makes
me feel little more comfortable with my "solution" of the problem. A
spice-simulation might confirm it. ...And yes, the 1k resistors were added
close to the SRSG. Because this are wirewound Ohmite enamelled Resistors,
they also represent a small inductance of a few uH (not known how much, to me).
However I'm not in doubt about the reality, reported by Malcolm and Dr.R.,
'cause, before adding the resistors, arcovers were had at the safety gap,
close to the HV-trannies. No actually available spice simulation will
represent the f-spectrum, generated by a firing spark gap, at some higher
level of power, and this may generate some strage things on a transmission
lines. But the resistors, in my case, just eliminated the problem. So... I
estimate the higher safety, regarding HV, mentioned before by David
Rieben. If stripping the shield of the RG213 coax, and the HV feeders are
laid down on the floor, the problem might not just be eliminated, 'cause
there is also a (hard to predict) capacitance of the feeders to the floor.
What about that? - Or do you need to conduct the stripped HV feeders, far
away, above the floor?
Bob, I guess, not to fully understand your last paragraph of the reply:
> Perhaps R's could be added on the primary side of the SG to reduce RFI
> from the line transients of the primary. They would have to be by
> passed with inductors so they primarily damped the HF transients.
> Don't know if practical solutions exist for this suggestion.
Do you mean, to introduce R's in the primary _oscillating_ circuit of the
TC, bypassing them by inductors, letting through the fundamental
quarterwave f and suppressing hiher overtones? - If true, I "think" this
might be a problematic approach, to deal with the problem, 'cause high
efficiency of the primary circuit is a real goal.
Best regards,
Kurt