Re: wintesla vs teslamap

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Slurp812 <slurp812@xxxxxxxxx>

At this point, I dont even have the wire for the secondary, and it 
may be more like 18-20 inches, depending on how that works out. and 
of course it would need more turns when/if I get a toroid, so I was 
thinking maybe 18, or even 20 turns. I am also guessing at the cap, 
its just a bunch of bottles. They are 20 oz bottles, a bit bigger 
than the typpical beer bottles, so I calculated that they should be 
close to 1000pf or as coilers call it 1nf. I am attempting to get 
this coil built with almost no measuring equipment, so far Iv barely 
used a ruler! :) I may have to take my cap to my old job to get it 
measured, that will definalely help the math. Thanks to ALL for the 
generous help and info!





On 10/5/06, Tesla list <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx> wrote:
Original poster: "Barton B. Anderson" 
<<mailto:bartb@xxxxxxxxxxxxxxxx>bartb@xxxxxxxxxxxxxxxx>

I'm showing 13.2 turns with Javatc. But as is safe and always a good
idea, more turns are smarter than not enough. A 16 turn primary would
be a good place to start (then tune to 13.2 turns - grin!). 30"
sparks are possible when "the planets align". Expect something less.
You mentioned over a foot of sparks. Certainly that is reasonable and
probably true during those first light runs. It is possible to hit
30", but anything less than that can be contributed to spark gap
losses. On start up of a new coil and coiler for that matter, the
spark gap is an area that will improve a coils spark length
performance a great deal. It does take experience to get a feel of
what works and what doesn't, how much air flow is enough and how much
is too much (and why no air flow is almost always a bad idea). Once
the coil is up and running, take a look at whatever your using and
check out what others have done who get good performance. Do what
they did and improve on their gaps if possible.

Take care,
Bart

Tesla list wrote: