Re: 3/4, 1/4, or 3/4 copper tubing?

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

 > I am in the process of building my new coil, but wondering if I should use
 > 1/4, 1/2, or 3/4 inch copper tubing for my primary. My power supply will
be
 > 2 12/60 nst's (1440W). Also, what size tubing should I use for my spark
rail?
 > Thanks
 > Adam


You'll get a lot of different opinions on this, but 1/4" copper tubing
should be just fine.  I run two (2) 15kV/60mA NSTs using only a
1/4" copper tubing and it barely gets warm even during long run periods.

Strike rail???  A strike is good for looks.  Functionally, its basically
worthless in my opinion.   In my experience, the same people claiming you
need
a ground system consisting of six hundred, geometrically spaced, 20 foot
rods in the earth are the same people who are going to tell you you need
a strike rail.

Heck, my grounding system now is just tying my braided rf ground lead with a
single loose-fitting overhand knot around my gas line going into my house.
Works great!!!!

Dan