RE: removing shunts from 4kv/20ma france 4020 NST

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-hp-dot-com>

You are correct - the shunts are just short segments of the same steel that
the E-I laminations are made of, just press-fit.  As you suggested, use a
hammer and screwdriver.

Gary Lau
MA, USA

>Original poster: "Laurence Davis by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <meknar-at-hotmail-dot-com>
>
>
>the tesla coil showdown rules state that the xfmr has to have a minimum
>of 5 shunts top and bottom. where are these shunts and how do i remove them.
>
>I've never unpotted an NST or have seen an open core before today.
>It was my impression that "magnetic shunts" were actually inductors
>wrapped around a magnet, which seemed odd to me.
>
>What I see in the core are about 17 plates top and bottom that are 
>connecting the legs of the E part of the EI core.  They appear to be of a 
>different composition than the core steel.  Perhaps just plain steel without 
>silicon that bleeds off eddy currents from the core?  How do I get them out? 
>  A swift whack from a hammer and screwdriver?
>
>any tips?
>larry