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Re: NST in oil design to help prevent NST failures



Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

Dr.,

Do you have an idea of what these transformers will cost approximately??

Thanks

The Captain



 > I'm working hard on this problem Ken.  In July I hope to offer 15 kV 120
mA
 > units in core/coil assemblies that can be dropped in a tupperware dish
full
 > of xmfr oil and the shunt moved over to around 180 mA.
 >
 > Later this fall we expect to do the 16 kV, 200 mA units and the shunt on
 > this could be moved as far as 250-300 mA if the duty cycle is short.
 >
 > Epoxy is ok for lighter duty but oil is the best for HV insulation and
 > cooling factors.  A good 200 degree C wire in oil and you have to boil the
 > oil before it dies.
 >
 > I'm trying to optimize the design to keep the costs affordable for members
 > of this list.  Will keep you posted.  The bobbins and the windings aren't
 > the problem --- it's optimizing laminated core costs to make it all work
 > out.
 >
 > Dr. Resonance
 >
 > Resonance Research Corporation
 > E11870 Shadylane Rd.
 > Baraboo   WI   53913
 >
 >  > When I was big into burning out neon sign transformers, I found that
the
 > old
 >  > tar filled ones seemed to be rougher and tougher than some of the newer
 >  > epoxied units. The ones that lasted the shortest time under abuse were
 > ones
 >  > from Actown. The tar filled Jefferson electric ones seemed the hardest
to
 >  > destroy, and were obviously much older.
 >  >
 >
 >
 >
 >
 >