Re: First run 6.5" coil- odd results? (fwd)

Welcome to the list!

Sounds like you are getting pretty god sparks for such a small transformer.
At 12kv 60ma (paralleling 2 12/30 neons) you may be able to get sparks as
long as 3' although I would expect around 2'. You may want to wrap your
caps in tin foil instead of the salt water bath. I found this to work


> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: First run 6.5" coil- odd results? (fwd)
> Date: Sunday, June 06, 1999 10:01 AM
> Original Poster: Chip Atkinson <chip-at-pupman-dot-com> 
> Date: Sun, 6 Jun 1999 11:58:19 EDT
> From: LUGNUT00-at-aol-dot-com
> To: chip-at-pupman-dot-com
> Subject: First run 6.5" coil- odd results?
> 	Since I'm new to the list, let me introduce myself. My name is Scott, 
> or "Lugnut" and I am very new to coiling. I wanted a good start, so I
> and bought everything for my coil, except for Xformer...:_( Chances are I
> doing something wrong but don't know it. I heard that my results were odd
> to my Xformer, tell me what you think.     
>      Well, here's my stuff:     right now I'm getting 8" sparks maybe 9".
>      secondary-6.5" OD PVC 1/4" thick  wound to 26" 22 or 24 gauge...I 
> forget...
>  	primary- flat pancake, 1/4" copper tubing spaced 1/4"  
>  				13 turns total.
>  	capactitor- salt water type, 15 totally assorted bottles in a 10 
>       gallon fish tank-no oil and I'm not getting flashover. Probrobly
due to 
>       my transformer's lack of power.
>  	Xformer- right now I have a horrble, beat up, but working 4000 volt 
> -at- 
>       30mA..
>  	Spark gap- 4 gaps at about 1 millimeter each.
>  	There are no bypass caps or safety gaps.
>       Discharg terminal- Use everything from a nail to a 7" sphere. After

>       tuning, I get the best results from the sphere, about 8" sparks. I
>       to use a nail to get sparks to the air, they get about 6" in the
> (really 	   	dim, but I can feel, them <ouch!>. 
>  	Problem- I have no real idea if I am doing well or not because nobody 
>       that I've heard of uses the weak transformer that I have. If I buy
>       12kv-at-30mA NST's, will I get 12x the sparks? That almost sounds 
> insane... 
>                    12x9! 
>       By the way, I'm 14 and showed my science teacher, she looked at it
>       I was doing something wrong...hmmmmm...maybe I am. Please help me
>  	or even comment on my coil. I even need a name of sorts...you people 
> are 	the best!
>  Thanks, 
>  Scott