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Re: More destroyed NST's - I don't think so...



Original poster: "Garry F. by way of Terry Fritz <twftesla-at-uswest-dot-net>" <garryfre-at-pacbell-dot-net>

Wow, that is great news! I have one I think has 6 layers destroyed, I had
some idea that losing a layer might throw off the phasing between the coils
and have dramatic impact on the operation of the coil, but from your info,
apparrently not.

I am wondering if the regular store bought mineral oil will work?

I am satisfied with the performance of the 12/60 I am cleaning up until it
blew so I will leave all the shunts in. Given my past experience, I like to
go for safe rather than longer sparks and sorry. Its about as loud as I
could have it in the apartment. Any louder and I'd have to really curtail
running it.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, January 18, 2001 6:49 AM
Subject: RE: More destroyed NST's - I don't think so...


> Original poster: "Ross Overstreet by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <ross-o-at-mindspring-dot-com>
>
> You haven't destroyed anything - you've just made your job a bit more
> interesting!  Unless you damage more than 10 or 15 layers of wire in the
NST
> secondaries, all you have to do is clean the secondary and unwind the wire
> until you find the undamaged portion.  Then you solder on a more
> mechanically stable (bigger) wire and cover with some tape.  No problemo.
I
> tell newbies all the time that you just can't hurt these things.
>
> My technique:
> I shattered the insulators with a big hammer.  I froze the unit, attacked
> the case with a chisel, beat most of the hardened tar into submission with
a
> hammer, attacked it with a screwdriver, and then put it in gasoline for a
> week!  Every few days I replaced the muddy gasoline with fresh gasoline
and
> worked on the coils with screwdrivers, dental picks, exacto blades, etc.
I
> completely disassembled the unit and removed the primary and both
> secondaries from the 2 piece frame.  I accidentally broke both wires off
the
> secondaries and had to find the end by unwrapping the paper covering and
> searching for the end.  Once again - No problemo.
>
> This is the same NST that I am running at 180-200 ma WITHOUT being
submerged
> in oil.  Now I'm a fool for not using oil or vasoline, and I can only run
> for ~90 seconds until the NST is 200+F, and IT WILL DIE one day (*) - BUT
it
> achieved my goal of having the lightest and smallest NST coil to produce 5
> ft arcs at SoCal Teslathon 2000.
>
> (*) a certain person whose name I won't mention will be thrilled when it
> finally dies so he can get in a "I told you so".  You should have seen the
> smile on Brian's, I mean that guy's face when a big ball of fire and shot
> out of the side of one of my secondary windings at SCT2K.  The smile
turned
> to astonishment when the coil hiccupped and then continued to run
> flawlessly, hehe.
>
> Sounds like you have 5 good NSTs sitting around that are half-way done.
I'm
> a big fan of NSTs.
>
> Good Luck,
> Ross
> http://users.better-dot-org/roverstreet/
>
>
> -----Original Message-----
>
> Original poster: "Garry Freemyer by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <Garry-at-NDFC-dot-com>
>
> Well, today I destroyed my fifth NST out of six tries and I am at whits
end
> on how to prevent this nasty problem from recurring over and over and I
want
> to ask people out there a few questions.
>
> ...  snip....
>
>
>