1/2" tungsten roundstock?

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

Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <Tesla729-at-cs-dot-com>

Hi all,

I am in the process of rebuilding my coil system and
have built a SRSG with G-10 and will be using tungsten
electrodes. I have been considering 1/4" tungsten elec-
trodes since that's the largest diametered size available
from a welders supply but I was wondering if I should
even consider 1/2" diameter tungsten since I plan on
running at about 10 kVA? If I should get that large
of dia. tungsten for electrodes, where would I aquire it
at this size? Would the 1/4" tungsten be large enough
for the relatively short runs that most coilers do?

Also, I have noticed some RSGs where tungsten tips
were somehow affixed to a stud of another type of
metal like brass, and I was wondering how tungsten is
brazed to another type of metal?

Thanks,
David Rieben