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Re: Unpot ++
Original poster: gary350@xxxxxxxxxxxxx
You should have put the transformer in the kitchen oven for about an
hour to melt the tar. The tar can be poured off like water. Wrap
the #36 wire several times around a lead out wire and solder
it. Cover the coil with several layers of fiberglass tape the kind
you buy from a motor rewind shop. Lay the lead out wire on top of
the tape then wrap another layer of tape of it. Put 2 layers of
polyurethane varnish over the tape. Put the coil back in the
transformer leaving out some of the shunts. Melt the old tar in pan
stir in 50% high voltage oil. The oil will mix fine with the
tar. The tar will dry soft with all that oil. Put the transformer
back into the original case and pour the hot tar over it. You can
also build your own box and fill it with 100% high voltage oil with
the unpotted neon inside. A unpotted neon in 100% HV oil makes a
bullet proof neon.
From: Tesla list <tesla@xxxxxxxxxx>
Sent: Nov 26, 2005 6:02 PM
Original poster: "Rich" <rdjmgmt@xxxxxxxxxx>
I have had a transformer soaking in gas for awhile, I just took it
out and cleaned it up with lacquer thinner. What a mess! Now to my
question, the secondarys are a mess and nicked on the outer windings.
, I goofed and was too rough a while back trying to remove the tar.
The transformer is a Jefferson 15Kv 60ma. The secondarys are about
36ga wire and I don't have any butt splices that size but I do have
some .004 copper sheet from a transformer winding. My question is
would it work to lightly sand the outer windings and solder a strip
of the .004 copper to it for a lead point? I do not feel safe trying
to solder to the end of the 36ga.
If it works I plan on making a Lexan box for it.