what size wire?

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

Original poster: "Bob Thaden by way of Terry Fritz <twftesla-at-qwest-dot-net>" <robert.thaden-at-amd-dot-com>


I'm building a coil 12.5" x 60".  Can anyone suggest the wire size I
should use.  I was planning on using my 10# spool of 18g but I see that's
not even half enough wire.  Has anyone used a mix of two diff sizes of
magnet wire - if so, does the thicker wire go at the bottom, and how
do you calc reson. freq?
thanks
bobt in Austin