RE: half filter?? and what all I need before primary circuit

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>

That's sort of like asking if you could run the marathon faster if you
had a heart transplant.  Depotting an NST is a substantial, unpleasant,
and messy project, and success is not guaranteed.  The secondary
windings are very fragile and easy to damage, and I'd not recommend
attempting it unless the NST was otherwise a lost cause and
irreplaceable.  Mine was a 15/60 - useless in its present state and
fairly precious.  Had it been a 15/30 I probably would have just tossed
it and found another.

I would guess that an oil-insulated NST would be more robust than an
old, used, asphalt-insulated unit, particularly since the asphalt tends
to crack with age, but I have no data to back that up.

Regards, Gary Lau
MA, USA



> Original poster: "Godfrey Loudner" <ggreen@xxxxxxxx>
>
> Hello Gary
>
> Do you think that depotting a NST and placing the transformer under
> clean transformer oil will significantly increase the chances of its
> survival. It would be harder for an arc to make it through oil than
tar.
> But I feel it would be difficult for oil to penetrate the HV coils,
thus
> leaving them susceptible to internal arcing. Maybe the oil could get
> into the other layers of the HV coils. I can't remember if anyone made
a
> posting about a depotted NST failing.
>
> Godfrey Loudner
>
> Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>
>
>
> I have written a very detailed web page about the how's and why's of
> protection networks - see
http://www.laushaus.com/tesla/protection.htm.
>