Static spark gap length question

• To: tesla-at-pupman-dot-com
• Subject: Static spark gap length question
• From: Raycroft <k.raycroft-at-worldnet.att-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sun, 09 Jan 2000 17:46:29 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi all,
I was wondering what the advantage of having a spark gap set to a small
length is.  With a 15kv NST, you should be able to set the gap at about
3/4 of an inch, yet many people set them at around .2 or .3 inches. 
couldn't you get much greater voltage across the capacitor by widening
this, or does too long a charge time (most of the cycle) do something
bad?  So far, I have set my gap at about 3/4" and get good results. 
Could my output be improved with a smaller gap?

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