Re: How should we measure coil efficiency

From: 	Greg Leyh[SMTP:lod-at-pacbell-dot-net]
Sent: 	Wednesday, July 23, 1997 4:58 PM
To: 	Tesla List
Subject: 	Re: How should we measure coil efficiency

FutureT wrote:

> > GOODNESS = (spark length to grounded terminal)  vs. (Energy in Cpri) X BPS
> Greg,
> Are you refering to a steady, connected spark to ground, or occasional hits?

Occasional hits, but at least 10 in a one minute period.
> My concern about steady sparks to ground is that they may not be truly
> representative of the normal free air (or occasional to ground)
> spark length performance.  

I don't see a difference in the two, at least for the purposes of this msmt.
If the grounded terminal is placed at distance X, then the coil system 
under test must possess a "free air" capability of X  in order to produce a
steady, connected arc of X length.