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need some help here!




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From:  SBJohnston-at-aol-dot-com [SMTP:SBJohnston-at-aol-dot-com]
Sent:  Sunday, February 01, 1998 4:33 PM
To:  tesla-at-pupman-dot-com
Subject:  Re:  need some help here!


DC Cox wrote:

>If you are going to run a 12 kV 30 ma xmfr your present tank
>cap value of.005 MFD will be a good match.  Be sure to put 
>the spark gap across the xmfr and run the cap in series with 
>the primary tap.  Do NOT put the cap directly across the xmfr 
>and then run your spark gap in series with the primary tap --
> this is a great way to damage an NST 

Well... the "great way to damage an NST" design sounds like the way my "dead
man's coil"  is configured!  Here's an attempt at a simplified ASCII
schematic of what I'm currently running...

                          RF choke                      gap
----- || -------0000--------+------> <------ out to primary top
      ||                    |
      ||                    -  .02 uF
120   ||                    -   total
vac   ||                    |
in    || -------------------+--------------- back from bottom 
      ||                                     of primary and 
      ||                                      earth ground
      ||
------|| ------ nc

   15 kV 30 ma
   transformer


Sounds like I should swap the gap for the caps.  Do I understand correctly?

Steve Johnston


sbjohnston-at-aol-dot-com