Tesla chit chat
Subject: Tesla chit chat
From: richard.quick-at-slug-dot-org (Richard Quick)
Date: Mon, 13 Mar 1995 23:16:00 GMT
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Quoting Ryan Jester:
RJ> Well I dont know if the core insluation of the RG-8 is
RJ> polyethelene, its a soild white and somewhat stiff. I did a
RJ> test with my 12KV xfmr seeing if the high voltage would jump
RJ> through the insulation of the RG-8 but I couldnt see
RJ> anything with the eye (I wasnt holding it either) but I did
RJ> hear a distinct buzzing sound other than the normal
RJ> xfmr sound so some may have jumped through.
You were probably just hearing high voltage tension that buzzes,
humms, and crackles depending on voltage, humidity, etc..
Polyethylene is one of the easiest plastics to identify. It is
tough, flexible, almost slippery feeling, and translucent milky
white. The other common coax insulator is some type of polymer
foam: It is not as tough, it is opaque white with a discernable
foam structure, not a pure solid.
To say that simply because they are electrically equivilent
for signal transmission is one thing: we are using the material
for a purpose for which it was not designed or rated.
RJ> I did not use the outer wire for grounding either.
For just jumping connections or terminals there is no need to
ground the sheath, or even use the sheath. But if the coax
is to be used for a run in excess of two or three feet, I always
leave the sheath on and ground it to the transformer core.
RJ> I'm finished with the static gap, following your directions
RJ> so thats out of the way.
Sounds good. How did it turn out?
RJ> About that deal with the plexiglass for some polyethelene.
RJ> What dia. of plexiglass (I'm assuming 8") and how long?
Approx. 8 inches in diameter, 28 inches long.
RJ> I will need enough poly for two caps. If your still ok
RJ> about this deal let me know.
I have surplus plastic sufficient for at least two capacitors,
and I would be willing to trade for high-Q secondary coil form
RJ> Ahh, one more thing before I get out of your hair, where did
RJ> you get your toroid for the discharger?
Which one? I have several.
... If all else fails... Throw another megavolt across it!
___ Blue Wave/QWK v2.12