vacuum switchs (fwd)

---------- Forwarded message ----------
Date: Wed, 29 Jul 1998 22:05:35 -0500
From: Paul and Stephanie Miller <smiller-at-rconnect-dot-com>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: vacuum switchs

I have a vacuum type high voltage switch that I beleive was made by
Jennings Radio. Has anyone tried useing one of these for a spark gap ? 
and if so what is the life expectancy of one?
 another thought, has any one tried putting their spark gap in a housing 
and presureizing it with some type of gas like nitrogen or sf-6?

  Paul Miller