Re: NST Depotting Experience +

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>


Step one is put the assembly in a freezer and leave overnight.  When 
frozen some of the larger "chunks" will easily break off when wacked 
with a hammer.

Step two is using the heat from a BBQ grill to melt away the smaller 
pieces of tar.  Outdoors of course!

The solution to the $100 tar cleaner is to use a good substitute ---
kerosine!  It works great to remove the final traces.  Due to it's 
inflammable nature a lot of "common sense" needs to be applied during 
this step but it does work excellent.  Never use gasoline due to it's 
liquid-vapor properties.  Kerosine does not have these problems 
unless excessive high heat, ie, 95-110 degrees.

Dr. Resonance


> Most that i've come across with gfi are potted in epoxy, and the 
> chemicals that are able to remove that are near $100 a gallon (which 
> would probably remove the enamel off the magnet wire too). If you 
> can remove that without destroying the transformer, let us know the 
> secret, I've pretty much given up on that idea.
>
> Mike
> ----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Friday, May 12, 2006 2:00 PM
> Subject: Re: NST Depotting Experience +
>
>
> > Original poster: "Krohns" <2halice@xxxxxxx>
> >
> > I have access to a large pile of relatively new defective FranceFormers that
> > have the ground fault circuitry.  Sounds like I should be able to remove the
> > ground fault junk and the transformers would probably work fine again.  Am I
> > thinking correctly?
> >
> > Hal from Tucson
> >
> >
> > ----- Original Message -----
> > From: "Tesla list" <tesla@xxxxxxxxxx>
> > To: <tesla@xxxxxxxxxx>
> > Sent: Thursday, May 11, 2006 4:18 PM
> > Subject: Re: NST Depotting Experience +
> >
> >
> > > Original poster: bartb@xxxxxxxxxxxxxxxx
> > >
> > > Hi Gary,
> > >
> > > Yes, I mentioned that in the write up of the experience. But, 
> > my > > decision
> > > to repot was more for the experience (since I hadn't tried it before).
> > >
> > > Take care,
> > > Bart
> > >
> > >  > Original poster: gary350@xxxxxxxxxxxxx
> > >  >
> > >  > Most of the time when you kill a neon it is just shorted through the
> > >  > tar.  Once you get an arc through the tar you have a perment carbon
> > >  > track for it to arc over and over every time you turn on the neon
> > >  > again.  Usually all that is needed is to melt the tar, stir the tar
> > >  > around a little bit, let it cool, and it will work fine again.   You
> > >  > can mix in 50% high voltage oil into the tar then pour it back into
> > >  > the metal neon case and let it cool.  The HV oil + tar is a big
> > >  > inprovement over just tar alone.
> > >  >
> > >  > Gary Weaver
> > >  >
> > >  >
> > >  >
> > >  >
> > >  > -----Original Message-----
> > >  >  >From: Tesla list <tesla@xxxxxxxxxx>
> > >  >  >Sent: May 10, 2006 9:05 AM
> > >  >  >To: tesla@xxxxxxxxxx
> > >  >  >Subject: NST Depotting Experience
> > >  >  >
> > >  >  >Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
> > >  >  >
> > >  >  >Hi All,
> > >  >  >
> > >  >  >I mentioned during a separate thread that I had killed my 
> > 12/60 > > NST.
> > >  >  >So, I went through a depotting experience (my first). I
> > wrote up > this
> > >  >  >experience. I thought those who are in the middle of such an
> > >  >  >experience or are thinking about it might enjoy this read.
> > >  >  >
> > >  >  >http://www.classictesla.com/photos/nstrepair/nstrepair.htm
> > >  >  >
> > >  >  >It really wasn't that bad of an experience and the results were
> > >  > well worth it.
> > >  >  >
> > >  >  >Take care,
> > >  >  >Bart
> > >  >  >
> > >  >  >
> > >  >
> > >  >
> > >  >
> > >
> > >
> > >