Re: [TCML] New SISG failure mode

[FIFTYGUY@xxxxxxx]

In a message dated 6/14/08 2:36:34 P.M. Eastern Daylight Time,  
bartb@xxxxxxxxxxxxxxxx writes:

>Yes, this is a worry for me. I'll be running 0.06uF which is rather  
>small and will allow a rather high bps. I expect some  problems.


    If you ballast heavily enough that you can  only supply enough power to 
charge the .06uF at a reasonable rate, you can  keep the BPS down to wherever 
you want  it.   
    At least with such a small cap on a big coil  you'll keep the peak 
primary current down.
    
>Something else I've been contemplating: If a strike hits the  primary, 

>this may be a serious issue for the SISG. I haven't used strike  rings in 

>many years, but I'm considering it for the SISG coil. Any thoughts  on 
>that? Funny, I was the one that stopped using strike rings way back  when 
>and argued my case against them on various discussions on the  subject. 

>Seems now more and more folks are heading that direction these  days. But 

>with the SISG, I'm thinking it may be a good idea (if constructed  

>properly to not arc to the primary if it his  hit).




The direct secondary strikes to the rectifier, SISG  itself, and things 
*under* the primary are VERY BAD. But it doesn't seem to mind  secondary strikes 
down to the primary itself. It power-arcs across a few turns  and stutters, but 
then keeps right on going with no reduction in performance.  Probably 
something that would be nice to avoid, though.
    I had to remove my strike rail because I couldn't  keep the secondary 
from striking out to it from the midpoint instead of from the  topload. Not sure 
why my electrostatics are so screwy. That's why I did the  "second topload to 
the side" thing (with great success).
 
-Phil LaBudde
Center for the Advanced Study of Ballistic  Improbabilities



**************Vote for your city's best dining and nightlife. City's Best 
2008.      (http://citysbest.aol.com?ncid=aolacg00050000000102)
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla