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Re: repair

Tesla List wrote:
> 
> > >> > > Subject: Re: repair
> > >Subject: Re: repair
> > Subject: Re: repair
> > >> > > Subject: Re: repair
> > >Subject: Re: repair
> 
> Subscriber: major-at-vicksburg-dot-com Sun Feb  2 17:55:20 1997
> Date: Sun, 02 Feb 1997 15:47:47 -0600
> From: RODERICK MAXWELL <major-at-vicksburg-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: repair
> 
> Tesla List wrote:
> >
> > >> > > Subject: Re: repair
> > >Subject: Re: repair
> >
> > Subscriber: rhull-at-richmond.infi-dot-net Sat Feb  1 21:38:17 1997
> > Date: Sat, 1 Feb 1997 09:05:54 -0500 (EST)
> > From: richard hull <rhull-at-richmond.infi-dot-net>
> > To: tesla-at-pupman-dot-com
> > Subject: Re: repair
> >
> > At 11:16 PM 1/31/97 -0700, you wrote:
> > >> > > Subject: Re: repair
> > >
> > >Subscriber: major-at-vicksburg-dot-com Fri Jan 31 23:12:03 1997
> > >Date: Fri, 31 Jan 1997 23:38:56 -0600
> > >From: RODERICK MAXWELL <major-at-vicksburg-dot-com>
> > >To: Tesla List <tesla-at-poodle.pupman-dot-com>
> > >Subject: Re: repair
> > >
> > >Tesla List wrote:
> > snip
> > >
> > >  I just unpotted the first of four neon transformers that I got from a
> > >sign shop in town. The guy there told me they were 15Kv -at-30ma. I'm sure
> > >they are 15Kv but not so sure about the current rating as the plates
> > >have all been removed. I kind of went back to the dark ages in the way I
> > >removed the potting. I boiled them in oil! I used a burner out of a old
> > >space heater to heat the metal pan pan filled with diesel! I know this
> > >sounds dangerous folks but it was a good 20' away from anything that
> > >would burn including yours truly. It really speeds up the process as it
> > >uses solvent and heat to disolve the tar. Just don't try this at home
> > >folks! The core looks, and disassembles the same way discribed in the
> > >archives. One secondary reads megohm resistance and is probably fried.
> > >The other reads a little over 8kohms. Is this the usual resistance of a
> > >15kv secondary? Or is this side shorted???
> > >
> > >
> > >                                 Frankensteins Helper
> > >                                        Max
> > >
> >
> > Max,
> >
> > Your have a good winding!  the secondary windings can range from 2K to 20k
> > ohms depending on voltage and current rating.  Sounds like a good 7.5kv 30ma
> > winding to me!!!  Cold chisel the other "frenched" winding off the core and
> > have a blast.
> >
> > Richard Hull, TCBOR
> > >
> 
> 
>    When I get all of the other transformers cleaned up I'll see if I can
> swap secondaries since all of them are identical. Are the secondaries on
> opposing sides wound in different directions? Or are both windings wound
> in the same direction on the same transformer???


   OOps another stupid question of mine. The next day I thought about it
a little more and remmebered that both secondaries are grounded to the
core, and therefore the neon is really a center tapped transformer with
the core as the center tap. So both of the secondaries will have to be
wound in the same direction! And each output will be 180 degrees out of
phase with each other. Next time I ask another dumb question like that
ignore me.