Carbon rod electrodes?

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

Original poster: "Richard W. by way of Terry Fritz <teslalist-at-qwest-dot-net>" <potluck-at-xmission-dot-com>

Hi list,
I used to build arc lamps as a kid using the carbon rod salvaged from 
carbon-zinc size D batteries. They were about the diameter of a pencil and 
ran the full length of the battery. After some use the tips become conical 
improving the gap.

Anyway, could something like that be used in TSGs?

Rick W.
Salt Lake