Re: IT Works! Quo Vademus from here?

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

Original poster: "Randy by way of Terry Fritz <twftesla-at-uswest-dot-net>" <randy-at-gte-dot-net>

I'm just posting to point out that ***gas lines*** are generally going to
have
a *dielectric coupling*, much like a traditional plumbing "union", but in
place
to act as an *insulator*, presumably to prevent electrolysis to the pipe
with
accompanying removal of metal. MIGHT BE a heckuva good place for an
arc. Even assuming no air within the pipe to combust, that's not to say the
"insulator" might not break down and release gas to the atmosphere.

Randy

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, January 31, 2001 3:32 PM
Subject: Re: IT Works! Quo Vademus from here?


> Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>
>
> Hi Matt,
>
> You might want to try a larger top terminal or adding a second one above
the
> first.  In many cases like yours, a larger top terminal will add to spark
> length.
>
> I don't know what wrong with the PFC cap thing.  The PFC cap should be
directly
> across the NST's AC terminals.
>
> Cheers,
>
>         Terry
>
>
> At 10:23 PM 1/28/2001 -0500, you wrote:
>
> >
> > Hi Terry & All,
> >
> >       Grandson and I fired up the new & improved coil today. It produces
18"
> > streamers to a 1-inch brass ball suspended above it from a grounded #10
wire.
> >
> > We are not running to full power indoors, as this is a basement workshop
with
> >
> > overhead gas line. There are a couple of things that I am unsure of
about
> > where we go next to make improvements. (Part of this a repeat from prior
> > posting)
> > 1) Ed posted a note about 2 weeks ago in which it sounded like he was
saying
> > that putting a PFC cap across an NST is not good for it, is
counterproductive
> >
> > to current limiting, and may cause more trouble than it is worth.
Perhaps
> > this explains what is happening with our coil. Without PFC, the voltage
and
> > current rise smoothly from 0-60V and 0-8.2Amp respectively. At about 62
V
> > input, the main gap starts to fire and the ammeter needle (Weston model
155
> > in oak case) does a "random-walk" over the range of 6 to 14 Amp. With
the PFC
> >
> > correction in the circuit, the voltage and current rise smoothly from
0-60V
> > and 0-5.95A. At about 62 V input, the ammeter needle again does the
> > random-walk over the range of 6 to 14 Amp. Does this indicate a problem
with
> > the PFC, NST, or is it just me not understanding the way it operates?
> >
> >       The system is configured as follows:
> >
> > 1)    Power Box: Inlet cable, 15Amp fuse, inlet switch, 15Amp EMI filter
> > (backwards), 20Amp/120V Variac, 0-130V AC voltmeter, 0-25 Amp ammeter,
power
> > outlet switch, outlet cable. Power box components grounded to mains
ground.
> >
> > 2)    PFC Box (Tupperware): 6 parallel 660VAC caps, 89.6uF total, outlet
> > cable.
> >
> > 3)    "Blitzwerfer": 15/60 NST w/safety gap. Each output leg of tranny
has a
> > 200-ohm, 200W wire-wound resistor at ~300 uHy (open porcelain tube
1.675" X
> > 6.5") as a poor-man's RF choke.- Aspirated spark gap (ala
> > www.Altair-dot-org/projects/suckergap/) hooked to shop-vac. A 0.01822uF x
60Kv
> > rolled cap, 12T, 0.25"Cu flat spiral primary wound 0.75" c-c, 23" above
> > floor, diam 6.375in to 24.375in Tapped -at-7.1T ( 17.10 uH) Secondary:
4.28" x
> > 820T 23ga starting 25" above floor for 21.16in  (13.96 mH.) Toroid:
4.25x18
> >
> > ( 13.75 c-c)  -at- 52" above floor. Secondary is grounded via 40" #6
battery
> > cable to 5/8"x48" copper-clad rod driven 42" through basement floor as
is
> > 30in diam. strike rail mounted at 25in above floor. No other HV
component is
> > grounded. Loaded secondary resonates -at- 285 kHz.
> >
> > We have run this thru ETesla6.11 and gotten the pictures of Voutput and
> > Soutput using Excel surface graph to make a contour plot.Claculated F is
277
> > kHz. Unfortunately, I haven't a clue as to what they indicate we should
do
> > next, or where problems, if any, exist. I would be happy to forward
these off
> >
> > list to anyone who can tell us what they indicate in terms of
improvement.
> >
> > Matt D. & Matt D.
> >
> >
>
>
>
>