Re: Safety Gap =

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net> 

I'm glad you have not had any failures.  I wonder if one realizes that
resonate rise could take the voltage above 40KV.  A spice simulation of a
12KV NST (with winding resistance in the model) at mains resonance (using a
6.2nf cap and no voltage limiting) could grow to above 100KV.  Now I'm sure
that other effects like core lose would keep the rise below this high level
and certainly the NST would smoke well before this.

Gerry R

 > Original poster: "Gary  Weaver" <gary350-at-earthlink-dot-net>
 >
 > I built my caps almost bullet proof.  They are all rated 40,000. volts
each.
 > I want my coil to be maintenance free.  I think overkill is better than a
 > DEAD cap that has to be replaced.  I have not used safety gaps in so long
I
 > have forgotten that people use them.  I assume it would be wise to use a
 > safety gap on caps that need the protection.  Richard Hall once said if
you
 > build your caps with a voltage rating of 2.5 times the transformer voltage
 > safety gaps are not necessary.  After loosing a few caps I took his advise
 > and built all my caps 40KV rating and I have not lost a cap sence.
 >