[NJARC] Hallicrafters SX-16 PS

[Scott Roberts]

Just took a look at tthe tube: it is partially shrapnelized
inside- large round bits of melted metal, and one of the
conductors blown out. I Think It's Dead Jim.

And so I checked the transformer output: close to 690VAC at the
tube. I think that is a BIT high... And there is transformer wax
melted out of it underneath.

Thoughts?

Scott


--- Scott Roberts <ng19delta at yahoo.com> wrote:

> Visit our web site - See http://www.njarc.org
> _______________________________________________
> ARRRGGGHHHHH!!!
> 
> I just went to warm up the set to do some troubleshooting of
> the
> BFO, and got something completely unexpected: a veritable
> lightning storm in the rectifier tube! It was glowing purple
> and
> yellow, with  electrical charges jumping all over the place
> inside- looked like one of those Tesla balls, and heated up
> very
> fast. I switched it off after a couple seconds. Hope the tube
> is
> ok- I will check it after it cools off...
> 
> I am suspecting a transformer issue... Any thoughts? I have it
> switched off, and unplugged, although I tried to get a reading
> from the empty rectifier socket, all I got was real high: I
> need
> to figure out the transformer ower connections, and what should
> be where...
> 
> Frustrating- get one thing straight, another decides to go to
> ...
> 
> Scott
> 
> 
> --- John Ruccolo <jr6v6gt at yahoo.com> wrote:
> 
> > Visit our web site - See http://www.njarc.org
> > _______________________________________________
> > Hi Scott,
> > 
> > Good work! You're learning the troubleshooting
> > process.
> > And, yes, sometimes luck plays a role in
> > troubleshooting -- thought we don't always like to
> > admit it. ;-)
> > 
> > Pretty soon, you will graduate from student to
> > instructor at our clinics. We can always use more
> > "experts" at the clinics.
> > 
> > 
> > Regards,
> > 
> > John
> > 
> > 
> > --- Scott Roberts <ng19delta at yahoo.com> wrote:
> > 
> > > Visit our web site - See http://www.njarc.org
> > > _______________________________________________
> > > Just thought I'd update those paying attention to my
> > > latest
> > > efforts...
> > > 
> > 
> > > 
> > > Anyway, I thought it wasn't too bad for a first try
> > > after major
> > > work! Should be on top of my game for the next DX
> > > contest... ;)
> > > 
> > > Scott
> > > 
> > > 
> > >      
> > >
> >
>
____________________________________________________________________________________
> > > Be a better friend, newshound, and 
> > > know-it-all with Yahoo! Mobile.  Try it now. 
> > >
> > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
> > > 
> > > 
> > > _______________________________________________
> > > NJARC mailing list
> > > NJARC at mailman.qth.net
> > > http://mailman.qth.net/mailman/listinfo/njarc
> > > 
> > 
> > 
> > 
> >      
> >
>
____________________________________________________________________________________
> > Looking for last minute shopping deals?  
> > Find them fast with Yahoo! Search. 
> >
>
http://tools.search.yahoo.com/newsearch/category.php?category=shopping
> > _______________________________________________
> > NJARC mailing list
> > NJARC at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/njarc
> > 
> 
> 
> 
>      
>
____________________________________________________________________________________
> Looking for last minute shopping deals?  
> Find them fast with Yahoo! Search. 
>
http://tools.search.yahoo.com/newsearch/category.php?category=shopping
> _______________________________________________
> NJARC mailing list
> NJARC at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/njarc
> 



      ____________________________________________________________________________________
Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile.  Try it now.  http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ