I recently read in the pamphlet Tesla Coil, by Georger Trinkaus, that the 
primary should be wound in the same directions as the secondary.  I built 
my coil so the primary is wound opposite to the secondary.  During 
construction, I looked at Chip A.'s coil pics and it appears that I built 
mine the same as his.  The coil works off induction amplified by 
resonance, so I don't really see why it should matter.  Would somebody 
please tell me if I built mine right?  I sure hope I don't have to change 
things around.  It would probably be easier to flip the secondary over 
rather than unfasten the copper tubing of the primary.  What a pain.  I 
sure hope I don't have to change anything!