Re: xfrmr rewinding, was: Re: SECONDARY WINDING AND COATING JIG

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

Original poster: "Peter Lawrence by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Peter.Lawrence-at-Sun-dot-com>

Xfrmr Folks,
            seems to me there are two ways to decrease the shunt-age in an
NST.  1) remove something so that the shunts have a smaller cross section,
2) remove something so that there is an air-gap to the shunts.

Which is prefered and why.

One of my cores can only (easily) be modified like (1) as the shunt laminations
each bridge the gap so reducing the number of laminations reduces the cross
section, and another of my cores is case (2) in that the shunt laminations are
stacked the other way so reducing the number of laminations introduces an air
gap.

-Peter Lawrence.

 

>
>Original poster: "Dukester by way of Terry Fritz <twftesla-at-uswest-dot-net>" 
<dukester-at-home-dot-com>
>
>Hi Pete,
>Actually it was 300ma. At 117 volts, it put out 13,400v at 260ma.(measured).
>I ran it up to 125v an my variac to see if it would saturate. That's where I
>get the 14/300 from.  When I put it back together, I took out all but 8
>shunts in each pack out of the original 22, so I would still have some
>current limiting.30 ga wire will give me about a 50% duty cycle dry, and
>even more in oil, which is more the ample for a Tesla coil.
>
>Catch you later,
>Sparky
>