Re: thoriated electrodes

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

Original poster: "Daniel Hess by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhess1-at-us.ibm-dot-com>


OK. I realize that I may be going out on a limb here but this may be
something to think about;

Has anyone experimented with using a bimetal RSG? For example, the flying
electrodes might be brass while the fixed electrodes could be tungsten.

I don't recall any threads on this subject. Is there something y'all know
that I don't?

Daniel



"Tesla list" <tesla-at-pupman-dot-com> on 05/27/2002 02:03:11 PM

To:    tesla-at-pupman-dot-com
cc:
Subject:    Re: thoriated electrodes





Scot,

Were the brass electrodes thicker than the tungsten?  If not,
I wonder why the wear-rate was reduced?

It would be interesting to try a number of different metals for
rotary electrodes and compare them.  However, each coil
may work a little differently depending on power, etc.  For
example I used brass electrodes in one coil, and they wore
much faster than steel or copper.

Some books suggest that metals such as magnesium, aluminum, or
zinc are better than copper.  Some folks fear that magnesium
will ignite, but I don't think that will happen unless the electrodes
are very thin.  I would think that such metals would not quench
that well.  It would seem that very few tests of such things have
been done by coilers.

Cheers,
John


>
> there was an increase of  spark length, a reduction of gap wear , but a
> bit more erratic behaviour in the spark gap ...
>
> just something to think about..............
>
>
> Scot D
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>