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Miller Tungsten Pads
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From: Bill the arcstarter [SMTP:arcstarter-at-hotmail-dot-com]
Sent: Friday, August 14, 1998 7:42 AM
To: ccurran-at-execpc-dot-com; tesla-at-pupman-dot-com
Subject: Re: Miller Tungsten Pads
Chuck Curran wrote:
>Some time back a Miller Electric tungsten contact pad was
>mentioned by someone, along with a Miller part number. As I recall
>this tungsten pad was "about" 1/2" in diameter and had either a
>threaded stud or a hole for a cap screw to hold it to a mounting
>surface. If you still have that part number,
I have mentioned this before - and its also ref'd in the tesla resource
listing (who is maintaining that list these days???)
I've seen pics of this stuff somewhere on the net, but I have no pics on
my page at the moment.
The p/n is Miller 020603, listed as "Point, spark gap". Any welding
store should have or can get them. About $6/ea. Steel bar, 1/2
diameter with a 3/8 diameter by 1/16 tungsten disk brazed to one end.
The steel rod is meant to be clamped into an extruded aluminum heatsink,
which you can also buy for $10. p/n MILLER 020622. The base of this
extrusion is flat and could be bolted down to some convenient surface
much more easily than the steel contact bar.
I drilled/tapped a hole in the back of each contact bar for the purpose
of attaching my heavy primary wiring...
Finally - there is even a neat ceramic base with recessed screw mounts
for holding up to four of the heatsinks - p/n 095621 for $5 or so.
Hope this helps!
-Bill the arcstarter
Starting arcs in Cinci, OH
http://www.geocities-dot-com/CapeCanaveral/Hangar/6160
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