Re: Am I missing something here?...

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


If the doorknob caps are DC rated and not RF rated they won't work properly.
They can not stand the RF corona at the edges of the foil and leak and
breakdown quickly.

If it's sitting on a concrete floor, not elevated, you are coupling a large
amount of your primary energy into the concrete.  It has to be elevated for
proper operation.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
.
 >
 > I've the the 5000/20 NST attached to two 2nF/40Kv doorknob caps in
parallel,
 > for a total of 4nF. From there, I have a single static spark gap which is
two
 > .5 inch copper pipe elbows which are basically impaled on screws and
 > rotatable, and the primary coil which is 4 turns of .25 inch copper tube,
 > with turns averaging 1 to 2 inches apart (It's a little messy right now,
just
 > sitting on the floor bare) which tunes when tapped around 2.5 or 3.5 if I
add
 > the third doorknob cap (Whew - I'd get marked down for a runon if this
were a
 > test).
 >
 > The secondary coil is 26 gauge copper magnet wire wound around a 3 inch
ABS
 > plastic form, about 18-20 inches wound. One side is connected to a wire
 > running to an earth ground, which is a steel rod pounded about 1.5 feet
into
 > the ground, the other (since I don't have any real topload) is ~10 inches
of
 > wire from the end, wound into a little coil .75 inches in diameter.
 >
 > This arrangement produces streamers going about 3 inches into the air, and
 > going maybe another half inch to anything you get close enough. I haven't
 > taken exact measurements, but it doesn't take a ruler to realize that this
 > coil is NOT generating foot-long sparks.
 >
 > Where am I going wrong? Do I need to ground the primary equipment to the
same
 > earth ground as depicted in some schematics?
 >
 > On a rather ridiculous side note, what would happen if one were to take
the
 > 5000 kilometers of wire necessary to make a coil that would have a natural
 > resonant frequency of 60Hz and drive a primary by simply hooking it
directly
 > into the mains? Or if you were to go a step further and connect it to the
 > cross-country 340Kv lines?
 >
 >
 >