Re: NST rebuilds

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <megavolt121-at-attbi-dot-com>

Steve-
 Try throwing them all on a heat source to heat them up 
and melt the tar. If there was carbon tracking in the 
tar, that will get rid of them. That's the easiest thing 
you can try. If they still dont work, then you can think 
about getting out the old chisel...

-alan
> Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
> <srward16-at-hotmail-dot-com>
> 
> HI,
> 
> Ive rebuilt transformers before and had success with each(I knew what was 
> wrong with each tranformer, ie, i blew them with a TC).  Recently, i picked 
> up about 15 busted transformers at a sign shop.  Unfortunately my friend was 
> there earlier and took most of the 60 ma units.  But anyways, i was noteing 
> some test results with just testing the transformers(if youre lucky some 
> will work! i was lucky with one).  So here are some characteristics of these 
> transformers.  All of them are magnetek(jefferson), or france.
> 
> 1.  One or both windings show no sign of arcing.
> 
> 2.  One side or both show very weak tiny sparks(1/20").
> 
> 3.  One side is strong, the other dead or very weak.
> 
> 4.  or a combo of any of these.
> 
> 
> Now, im wondering if anyone can tell me whether or not these are signs of a 
> good rebuild(tar broke down), or a bad pointless rebuild(winding broken 
> down).  Id really love if i can get a few of these 15/60s working again.  So 
> far ive been working on an Allonson 15/30, for a smaller coil and for 
> practice.  Also, does anyone know if a broken down winding has any specific 
> characteristics??  Any other info anyone can give will be helpful.
> 
> Steve Ward.
> 
> 
>