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Terry Fritz wrote to the list:
> High voltage RF is attracted to insulators due to the dielectric effects.
Thank you for sharing your expert knowledge. Now I'm a little bit
> Even though the PVC is in insulator it can still easily attract arcs.
Although air has a higher punch through voltage than PCV I
obviously have seen one side of the medal only. The drawback is
that insulators have a higher dielectric constant than air as well.
This results in rf currents being able to compensate the a.m.
positive effect. Correct?
- An observation: After having added a 5" PVC tube to my old 6"
primary / 4" secondary configuration, the 5" shielding tube was hit
from the primary. A carbon track (over 1" long) was generated on
the outside of this tube not penetrating the material.