RE: Practical limit to number of turns on primary ? ? ?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "John H. Couture by way of Terry Fritz <teslalist-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>


John F -

If each bang has the same energy why not about the same spark length? It is
obvious that energy in each bang varies as shown by the varying spark length
output. Also it appears there is not a spark for each bang. It is possible
that energy in the bang is insuficient to cause a spark in an oversized
toroid. This energy would then be added to the next bang to create an extra
long spark.

With an oversized toroid and without a spark the energy would return from
the secondary circuit to the primary circuit and the primary capacitor. This
could happen with several  bangs building up to a super spark from the
toroid. However, this would not be very efficient because of the extra
losses. This is why the primary circuit and secondary circuit have to be
coordinated not only for tuning but also for the energy requirement.

Coordinating the primary and secondary for best energy use would create a
more consistent spark output. This type of operation would be more efficient
but would have the disadvantage of not having any random super sparks to
brag about.

John Couture

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-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Thursday, January 30, 2003 8:20 PM
To: tesla-at-pupman-dot-com
Subject: Re: Practical limit to number of turns on primary ? ? ?


Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<FutureT-at-aol-dot-com>

In a message dated 1/30/03 6:45:58 PM Eastern Standard Time,
tesla-at-pupman-dot-com writes:

 >The main problem is to determine the exact input watt-second energy needed
 >to create the extra long random spark length. In other words the longer
 >output spark means the coiler has found a better overall efficiency for his
 >TC system. But how do you find the true input energy for that particular
 >spark (input J above)?


John C, all,

Using a synchronous gap, this is very easily determined because each
bang size (each cap discharge energy) will be almost exactly the same.

John