Re: tungsten fish weights

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

Original poster: "Scott Hanson by way of Terry Fritz <teslalist-at-qwest-dot-net>" <huil888-at-surfside-dot-net>

These "tungsten" fishing weights are fabricated using a powder-metal
process, and end up being tungsten powder held together by a nickel binder.
If used in a high-power spark gap, the nickel will vaporize and the whole
electrode will erode at a much faster rate than would an electrode made from
straight tungsten. However, they might be suitable for a low-power coil with
lots of cooling air flow. The low price makes it worthwhile to test some and
see exactly how fast they erode.

Regards,
Scott Hanson


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, June 28, 2003 9:52 AM
Subject: Re: tungsten fish weights


 > Original poster: "Bill Vanyo by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<vanyo-at-echoes-dot-net>
 >
 > Wow, these look to be a nice shape - I might try them for the triggered
 > gap I'm building.  Some have plastic inserts, but these can be removed.
 > They're 5% nickel - anybody know how that will affect their use as
 > electrodes?
 >
 > - Bill V.
 >
 >
http://www.cabelas-dot-com/cabelas/en/templates/product/standard-item.jhtml?id=0
000047115597a
 >
 >
http://www.cabelas-dot-com/cabelas/en/templates/product/standard-item.jhtml?id=0
017580117176a
 >
 > http://www.basspro-shops-dot-com/servlet/catalog.TextId?hvarTextId=37405
 >
 >
 > Tesla list wrote:
 >  >
 >  > Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
 > <coils-at-dslextreme-dot-com>
 >  >
 >  > Greetings list,
 >  >
 >  > I am building a new srsg.  in my search for electrodes, I found
tungsten
 >  > fish weights of various sizes.  They can be viewed at Basspro-dot-com or
 >  > Cabellas-dot-com.  Does anyone have any experience using these?  They are
 >  > cheaper than any other form of tungsten product I have seen, and they
are
 >  > available in various sizes and shapes.  Here is my srsg in progress,
the
 >  > blue is G-10.
 >  >
 >  > http://hot-streamer-dot-com/temp/newprimary.jpg
 >  >
 >  > Cheers,
 >  >
 >  > Thad Howard
 >
 >