Re: performance/tuning question

[FutureT-at-aol-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

In a message dated 7/26/00 12:12:10 PM Pacific Daylight Time, 
tesla-at-pupman-dot-com writes:

> John,
>  
>  It depends on the power supply.  If for instance, you are using a 12 kv, 
30 
>  ma transformer and then double or triple the size of the primary 
capacitor, 
>  the coil will probably perform poorly because the transformer cannot 
supply 
>  enough current to charge the new larger cap up to full voltage.  If you 
are 
>  using a supply that can supply a few hundred ma, the coil will perform 
much 
>  better.  The average power going into the system will be higher and the 
>  streamers will be larger.  This assumes retuning and that the secondary 
can 
>  handle the increased power levels.
>  
>  Ed Sonderman

Ed,

If you're using a 12/30 nst, and you double or triple the cap (up from
matched size), and use a sync gap,  the coil will give the same 
spark output, but the NST will be "protected" some from the higher
voltage that would result from using a matched sized cap.  I use
this method in my TT-42 TC at:

   http://hometown.aol-dot-com/futuret/page1.html

Cheers,
John Freau