Re: Secondary ground terminations
Subject: Re: Secondary ground terminations
Date: Wed, 11 Jun 1997 17:26:11 -0500
From: "Robert W. Stephens" <rwstephens-at-headwaters-dot-com>
To: Tesla List <tesla-at-pupman-dot-com>
> > I was planning on plugging the base of my sec tube with a 3/8-
> > 1/2" disk of Plexiglass with a 1/4-20 threaded insert in the
> > center, and gluing a second 3/8" disk above this insert to
> > insulate and plug the insert hole. The insert would be used to
> > mount the secondary assy.
> > Would it be reasonable to use this insert as a ground connection,
> > running a thin copper strip radially outward on the base of the
> > lower disk from the insert to the bottom tail of the secondary?
> > Gary Lau
> > Waltham, MA
> I have done something similar already on my 3.5" by 22" secondary. I
> have plugged the plexiglass tube with plexi disks at both ends but about
> an inch into the tube. I then have another disk at the ends with 1/4 20
> brass bolts and I have run the winding wire in through a small hole on
> the side directly to the bolts.
> I haven't had any problems with corona or breakout so far.
> Peter E.
That sounds like a good idea you've employed there for coils up to
between small and medium.