Original poster: FutureT@xxxxxxx
In a message dated 4/3/06 9:10:52 PM Eastern Daylight Time, 
tesla@xxxxxxxxxx writes:
In a message dated 4/3/06 2:27:49 AM Eastern Daylight Time,
tesla@xxxxxxxxxx writes:
>I did some tests and
>compared the spark length using a sync rotary, compared
>to a triggered sync static gap.  The triggered sync static cap
>had about a 5/8" spacing.
     John-
     Any more details or photos of your triggered static gap?
-Phil LaBudde
Phil,
I don't have any photos.  The design was based on teh work
of Mark Metlicka a number of years ago.  We used a lamp dimmer
(actually a motor controller) to vary the triggering phase.
A GM ignition coil was used for the high voltage to the trigger
electrode.  The gap itself was formed from two round discs
of metal 5/8" apart with the flat faces facing.  The 1/8" wide
pointed tungsten electrode aimed towards the center of the
gap.  I'll see if I have more details in my notes.  The gap
was extremely loud and bright.  Much much louder than a rotary.
Many others on this list had built similar gaps back then.  I assume
they're still on the list, not sure though.
John