Re: Coil schematics?

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

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

In a message dated 10/3/01 10:50:45 AM Pacific Daylight Time, tesla-at-pupman-dot-com
writes: 


>
> Hi Terry, Gary, 
>
> Thanks for the tips!!  My thoughts were that if the PFC cap is connected 
> directly across the NST, it would likely be having to keep charging up with 
> every poewer-up of the coil.  It no doubt would be OK like that but I would 
> think that since the PFC acts as a "holding tank", it remains fully charged
> and 
> "ready to go" when connected across the mains. I run my coil for only 2-3 
> seconds at a time, but you make a good point about the higher currents 
> involved. 
>
> As for the placement of the safety gaps, it seems there are a couple schools
> of 
> thought on that? I've seen them placed directly across the NST output as well
>
> as after the RC network, across the main gap as I have them.  My thinking is 
> that if anything happens to the main gap, i.e. it gets opened too wide or 
> somehow gets disconnected, the safety gap is right there to fire off and let 
> you know. Is there a standard that needs to be set here or am I just blowing 
> smoke?  Thanks for your comments, you guys are great. 
>
> Marc 
> Ca, USA 



It sounds like we are talking about three gaps here - which is how I have my
system set up.  There is a safety gap near the pig, center post grounded to
main rf ground.  Then there is the sync rotary gap located below the primary. 
Then I have a static safety gap across the rotary to protect my caps. 

Ed Sonderman