Re: Here are my current specks: Was I give up!

["Garry F." <garryfre-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Since the circuit I use calls for two caps in series wouldn't I need .0176uf
per cap?

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, August 22, 2000 4:32 PM
Subject: Re: Here are my current specks: Was I give up!


> Original poster: FutureT-at-aol-dot-com
>
> In a message dated 8/22/00 12:02:05 PM Pacific Daylight Time,
> tesla-at-pupman-dot-com writes:
>
> >
> >  I caculate that I need an .088pf capacitor or since I have two in
series, I
> >  will need two about
> >  176uf each.
>
> Garry,
>
> I'm glad you obtained somewhat better results.  I would think the
> matching cap size for that NST would be about maybe 0.0088uf
> or so. Although a somewhat larger cap can be used to keep the
> voltage lower on the NST.  I'm sure others will go into much greater
> detail about the sizes and calc's etc.
>
> >  Primary is #14 wire, about 40 windings with lots of bare spots for
tapping.
> >  Secondary is a 3" PVC pipe covered with 24 inches of #29 wire.
>
> Seems good to me.
> >
> >  There are three chokes composed of #29 wire wrapped over a half inch
thick
> >  dowel. The length of the
> >  windings are all 3.5" each. One choke on each high voltage lead from
the
> NST
> >  between the spark gap
> >  and the NST.
>
> Certain choke sizes can cause resonances which can help to destroy
> the NST.  I just use safety gaps, but many coilers also use MOV's
> and resistors and bypass caps to protect their NST's.
>
>
> >  My best performance was off a spark gap composed of flashing rolled up
at
> >  the ends that was mounted in
> >  a 4" PVC joint with a muffin fan on top.
> >
> >  I had about 12-14" sparks and similar streamers off this with a 2" X 8"
> >  commercial spun aluminum
> >  toroid.
> >
> >  One person here said given what I had, I should not have trouble
getting
> 30"
> >  sparks.
>
> I calculate about 39" max, but you may need a 120 bps synchronous rotary
to
> obtain that, and a larger toroid, an excellent capacitor of optimal size,
etc.
> Many folks only get 18" to 22" from those NST's or less.
>
> >  Finally, I tried two brass doorknobs. Flat surface area inside the same
PVC
> >  joint with the same fan.
> >  Result was a significant improvement in performance to the tune of 16"
> >  sparks. The best yet!!
>
> Not bad at all !!
> >
> >  The next morning, I turned it on and the gap would only fire
sporatically.
> >
> >  My guess as to what is wrong is that the NST has fried partially and I
am
> >  not getting the current I should be getting out of it.
>
> Very possible.
>
> >  As for getting a new neon sign transformer, this is rather problematic
as
> >  the only shop that has any was
> >  recently bought by "Newbies" who said themselves that they do not have
a
> >  clue of what the value
> >  of anything they have in their inventory and seemed understandably
> reluctant
> >  to sell or give away any
> >  used items.
> >
> >  I would appreciate any help. I thank you all. I note that nobody flamed
me.
> >  This I bet would never
> >  happen in any discussion group as most other groups are more like a
pack of
> >  wolves that jump another
> >  when one of them go down. I am most impressed with the kind and never
harsh
> >  replies I got from this
> >  group. You should all be proud.
>
> Yes, this is an excellent group, we are all students no matter how
> little or how much we know, all learning as we go.
>
> Always more to learn,
> John Freau
>
>
>