Re: 15000V/120 ma NSTs, other XFMRs

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

Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>" <srward16-at-hotmail-dot-com>

Hi John,

Actually, a friend of mine depotted the magnetek and had this problem, i 
dont know if i would have had the same problem, since this was his first 
depotting.  Aslo John, what method do you use for depotting??  I just pry 
the tar away for about 2 hours.  And, did you ever have to make repairs to 
any of youre secondaries??

On a lower note, i gashed my hand VERY BADLY, i have a gash about 1" long 
and about 1/8" deep into the outside of my hand.  What from??  No other than 
the sharp casing of a France NST, that was recently torn open.  I think i 
should probably get stitches, but it does not hurt at all for some reason, 
and i dont want to go to the hospital.  Here is a interesting situation, my 
recently depotted 15/30 nst (FRANCE) does not work, one secondary is bad.  
The good secondary reads 9k ohm but the bad one reads 6k ohm.  Are there 
some shorted turns?? I always figured that if a coil broke down internally, 
that the coil wire would be broken at least somewhere, telling my meter that 
i have an open circuit.  This is not the case.  The bad secondary only puts 
out a few hundred volts, and gets warm from running it.  And one more bad 
note: half way through a 12/60 depotting(magnetek), i damaged the secondary 
when pulling off the tar.  When i pulled it off, it pulled off part of the 
secondary coil, leaving busted up wire showing:((.  I must say, this is not 
my night!!

Steve Ward.


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: 15000V/120 ma NSTs, other XFMRs
>Date: Sat, 27 Jul 2002 14:08:34 -0600
>
>Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><FutureT-at-aol-dot-com>
>
>In a message dated 7/27/02 3:14:39 PM Eastern Daylight Time, 
>tesla-at-pupman-dot-com
>writes:
>
>Steve, Dave, all,
>
>I'm glad to hear your back to coiling Dave.
>
>A little tricky to insulate a 15/60 Magnetek (Jefferson) after depotting,
>but not really that hard.  I slid the outer core assembly (a few
>laminations at a time) off of the center core, then cleaned away
>the old mica insulation.  Then
>I assembled the core with coils, and bent some 0.060" polyethylene
>sheets into a "U" shape and inserted them between the core and
>secondary winding coils.  I did the same thing with the Jefferson
>12/30 NST in my TT-42 TC.  These pieces of poly insulation can
>be seen in the TT-42TC NST at my webpage at:
>
>    http://hometown.aol-dot-com/futuret/page1.html
>
>at the bottom of the page.
>
>Cheers,
>John
>
>
> >
> > BAD
> > 1, Allanson 15/30-couldnt seperate core, useless because of that
> > 2, Magnetek(jefferson)15/60 hard to insulate after repair(not enough 
>room),
> > shunts arent removable, actually part of the core!




_________________________________________________________________
MSN Photos is the easiest way to share and print your photos: 
http://photos.msn-dot-com/support/worldwide.aspx