Re: [TCML] phillips question about wax and more

["Phillip Slawinski" <pslawinski@xxxxxxxxx>]

> Actually, repairing an NST is not only a good experience (which most never
> want to experience again, myself included), but the outcome can be
> incredible. The work and mess of depotting is the killer. No matter what
> method is used, hard work is needed to get it clean and back into shape. I
> actually had to depot my rebuilt NST twice. Once with original tar, 2nd time
> with the wax. The 2nd time was easy and fast thanks to the wax. Simply
> heated until liquid and poured out (super easy). The problem was a burn on
> one of the secondaries due to a mechanical issue with the wire too close to
> the case. I fixed, maneuvered wires into position out of harms way, and then
> remelted the original wax and poured in. All's been good ever since.

I've done two transformers so far, both Franceformers.  The first NST
I did was a 15/60, I wasn't able to save that transformer sadly.  I
acquired a 12/60 exactly like Mr. Anderson's transformer, though mine
is considerably older.  This transformer was potted in Tar, which is
somehow worse than the asphalt.  It doesn't pour well, and is stickier
than the asphalt.  I guess the wax is probably what I'm going to go
with.  I'd really like the transformer to be portable, and mineral oil
would make it difficult to carry that around.  I can think of few
things worse than having mineral oil spill in my car.

I have a fluke 335 current meter, and that's about it so I was able to
make some imprecise measurements of the transformer.

Unmodified
Primary   121.6V  6.4A  778.24 VA
Secondary 12000V  60mA  720.00 VA

Power Factor 0.93

Modified
Primary   120.8V 12.4A 1497.92 VA
Secondary 12000V 116mA 1393.07 VA

I can only vouch for the accuracy of the primary measurements.  These
measurements were taken with half the shunts removed.  Maybe my
numbers are way off?
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