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Re: Long Sparks or Powerful Sparks

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Hi Jeremiah,

That's an interesting concept but I'm not quite sure it's
that simple, unless you opt for a Van de Graf tape elec-
trostatic generator. These can be desinged to generate
V into the megavaolt range with mere microamps of current. From my personal experienece, with Tesla coils, I've found that the more primary energy that's pumped into the system, the longer AND brighter the output sparks seem to get. Although a 2200 turn secondary coil is certain-
ly within the realm of feasible (I remember the late Marc
Metlica talking about his 3000 turn secondary coil), it seems that the way that you propose to built it would wouldn't work properly to obtain your goal. For one
thing, I think that you'd find a 100 kV primary circuit voltage
to be extremely challenging to incorporate into your system.
Remember, in a capacitor E=.5C x V^2, so the capacitor's
stored energy increases as the square of the voltage. Of
course, you could get by with a rediculously small capacitance
at 100 kV and still have considerably high energy per bang,
if this was feasable. Assuming that a 100 kV primary circuit voltage was FEASABLE for an ameture coiler, and I think that's the key - not whether or not this much primary voltage is POSSI-
BLE, it certainly is, I think your 2K+ turn primary "wound with
very fine wire" so as to obtain something reasonably short in
vertical height, I assume, would fail due to flashover. Sorry for
the runon sentence ;^) I'm sure others more educated than myself could better explain it and crunch the numbers better
but, as I've seen written in these archives many times before, why not try it and tell us what happens ;^) Many of the strides
made in Tesla coil design were achieved by someone thinking
"outside the box".

David Rieben



----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, November 11, 2005 10:08 PM
Subject: Long Sparks or Powerful Sparks


Original poster: tesla popp <teslas_lab@xxxxxxxxx>
I have been thinking again, what if a special coil
could be made that would produce a very long pulsed
spark, but very thin?  The reason I think a tesla coil
would be better than a marx, is that a marx genorator
requires dangerously large caps to work.  I would like
a less deadly spark to work with.
The key here is voltage, and LOTS of it! perhaps a
coil of very fine wire, say 2200 turns.  That way I
could use a much larger cap with a bigger "bang" since
a lower frequency would be in place.  I also might
charge that cap with a rediculas 100,000 volts DC.
The higher voltage might be less losey for such short
pulses.
Ideas on this would be great.  Im looking for
*anything* you have, even theory or unproven ideas.
If you have a better way to achive this other than
tesla coil, E-mail me offlist.  I want to keep the
TCML clean!
Coiler Forever: Jeremiah Popp