Re: how big a spark should I expect

• To: tesla-at-pupman-dot-com
• Subject: Re: how big a spark should I expect
• From: FutureT-at-aol-dot-com (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Mon, 22 Feb 1999 17:51:21 -0700
• Approved: twf-at-verinet-dot-com

In a message dated 99-02-22 05:33:41 EST, you write:

<< 
> 1- 15kv -at-60ma neon transformer
> 2- .01 mineral oil filled caps from a spot welder in series
> 1- forced air spark gap
> 1- primary of 18 turns, number 6 tapped at about 12 turns
> 1- 600 turn secondary wound at 20 turns to the inch.
 
> I am getting 18 to 20 inch streamers. Is this about right for a coil of 
> this size?
 
> Thanks
 
> Jeff Montgomery 
  >>

Jeff,

Yes, the output is being limited by the relatively small capacitor
which is too small to provide resonant charging.  With a .015uF
capacitor, and a 120 bps sync rotary gap, the coil would give
longer sparks.  But for it's present specs, it's fine.

John Freau

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