Re: rebuilt nst not working

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

Original poster: "PotLuck by way of Terry Fritz <twftesla-at-qwest-dot-net>" <potluck-at-xmission-dot-com>

Hey Steve,
I've rebuilt 3 15/30's using the following site as a guide.

http://hot-streamer-dot-com/ross/projects/ac_coil/psu.html

I run them dry with no signs of flashover or corona. I had sealed the ends
of the secondaries with polyurethane and insulated as seen at the site with
polypropylene gotten from food containers purchased at K-Mart. To adjust the
shunts I installed them all the way in. Then shorted the NST output and
raised the input through use of a variac watching the output current. At
first that current was really low as can be expected. Then after power down
AND unplugging the variac from the wall socket ( BE SURE OF THAT!! ) I
tapped them out a little at a time, each time raising the power gradually
and watching output current until each secondary came to 30ma. Once the
shunts were "adjusted" I coated them with several coats of poly to assure
they stayed in place.

I really believe the secret is the polypropylene insulation.

Rick W.
SLC


----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, March 29, 2002 3:46 PM
Subject: rebuilt nst not working


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<steve.tami.andrews-at-att-dot-net>
>
> more problems......just put back together a 15000/60
> france.the first dry run was ok except for some arcs
> {both sides would arc to ground and each other},so i
> took it back apart insulated everything..now no arc over
> but both sides only arc to ground not each other?what
> did i do wrong.used plasticoat to coat both sides of the
> sec?i did a 15000/30 the same way it seams to be working
> ok..could i have taken too many shims out? any help will
> be great, thanks as allways
>
>
>