RE: Tungsten gap erosion

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

Original poster: "Mike Doyle by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mdoyle-at-CHERRYCORP-dot-com>

I bought some 1/8 inch tungsten welding rod off ebay a while back. Since the
seller didn't indicate whether it was 2% thoriated and it didn't come in the
original packaging I was wondering if I could tell by the red dye on the tip
of the rods which type I had. 

Does red mean 2% thoriated?


Michael Doyle - Senior Lab Technician
Cherry Electrical Products
11200 88th Ave, P.O. Box 581913
Pleasant Prairie, WI  53158-0913
Phone: (414) 942-6627
Fax: (414) 942-6334
EMAIL: mdoyle-at-cherrycorp-dot-com <mdoyle-at-cherrycorp-dot-com> 
http://www.cherrycorp-dot-com/ <http://www.cherrycorp-dot-com/> 


	-----Original Message-----
	From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
	Sent:	Saturday, August 11, 2001 1:15 PM
	To:	tesla-at-pupman-dot-com
	Subject:	Re: Tungsten gap erosion

	Original poster: "Michael Rhodes by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <rhodes-at-fnrf.science.cmu.ac.th>

	Thanks for this comment.  I live in south east asia and things are
	a little tricky to get or to identify.  I was in our machine shop 
	selecting the tungsten rod I am going to use in my spark gap and
	he showed me some in green and some in red.  The machinist
	didn't know what the difference was nor I.  Now I know which
	one to pick.

	> 
	> Hi Michael,
	> 
	> You can easily get the pure tungsten (non-radioactive) variety
from any
	> welding shop.  They tend to come in green packages...
	> 
	> Cheers,
	> 
	> Terry