Re: 20 joules at 100 bps vs 4 joules at 500 bps

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 8 Aug 2005, at 12:14, Tesla list wrote:

> Original poster: "Dmitry (father dest)" <dest@xxxxxxxxxxx>
>
>  > Original poster: Bert Hickman <bert.hickman@xxxxxxxxxx>
>
>  > That's really an excellent summary! Although the "average field" is
>  > considerably lower, the E-field near the tips of streamers must
>  still > be significantly above 30 kV/cm to support further growth.
>  Further > streamer-leader propagation can occur as long as the
>  terminal voltage > rises fast enough to overcome increasing path
>  resistance as the > leader channel cools. Smaller coils run out of
>  voltage, limiting > maximum discharge length.
>
> where did you take the data, that large coils are more efficient that
> small ones? give me examples of _visible_ superiority. i don`t
> consider that Steve Ward's drsstc have such superiority, because 20%
> it`s not a lot, it`s not sg coil, and the power is not even more than
> 5 kw - it`s not so big coil. let`s see if these given _big_ coils
> _noticeably_ more efficient than small ones - i mean by criterion of
> 1.7 * sqrt(P):
>
> 1. Greg Leyh "Electrum"                               - NO
> 2. Tesla Technology Research "Model 13 M Magnifier"   - NO
> 3. Kevin Eldridge "BIGGG Tesla Coil"                  - NO
> 4. Mark Barton 25kw coil                              - NO
> 5. Ed Wingate 13kw classic coil                       - NO
> 6. Richard Hull "Nemesis"                             - NO
> 7. Richard Hull "Magnifier #11E"                      - NO
>
> now your turn - give me the list, that shows the opposite.
>
> what does it mean - "Smaller coils run out of voltage"? you want to
> say, if we take 2 coils with the same power, but they would differ in
> the secondary height and voltage 2 times for example, the taller coil
> would give a lot long sparks? it`s _very_ simple to verify practically
> - where is such info?
>
> p.s.
> ever and forever, absolutely best performer, supa dupa mega giga coil:
> http://www.ttr.com/model9_page2.htm "Longest arc length is 17 feet
> with 5 Kva A.C. input." Freau number is 2.885!!! 1981 - whoa! so
> you`re all here nothing more than just a losers! LOL :-)))

Prove that the input is 5kVA and that the figure quoted isn't taken
straight off the transformer rating faceplate! Yep - it has been done
before ;) I'm afraid that when you actually build and run a coil
you'll learn there is a lot more to it than meets the eye. I'm
suspect there are more than a few of us waiting for an opportunity to
have a quiet chuckle. The man whose quote you have included below
would be interested in your speculations I'm sure ;)

Malcolm

> -----
> I have run coils up to 20KW in residential neighborhoods.  I have
> received death threats and have had the police, fire, and department
> of water and power all show up at the same time. Screw 'em all.  Keep
> firin'. (c) Mark Barton  29-09-95