Re: Primary-secondary spacing

["Barton B. Anderson" <tesla123-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi Pual, 

Tesla list wrote: 
>
> Original poster: "Paul Mathus" <pmathus-at-learningco-dot-com> 
>
>      Hey folks, 
>
>      I'm helping some friends build a big coil right now, and wanted some 
>      advice from the big coilers on the list.  My building experience is 
>      with my own small 700 watt coil, and this is a 15KVA pig powered 
>      monstrosity. 
>
>      The secondary is 15" in diameter.  What would folks recommend as a 
>      good distance between the secondary and the first turn of the primary? 
>      My instinct is to go at least 2"-2.5" or more to avoid flashover. . . 
>   
>
>      thanks, 
>
>      paul mathus 
>  

2 inch should be fine. My 12.75" secondary has 2" to the first turn of the
primary. You should be able to raise the secondary to fine tune if necessary. 

Bart