Sorry for asking so many questions.... I am limited on resources and want to /try/ and have a good design as my first coil. So 4" diameter and 28g wire.... 1000 turns gives me (about) 13.7 in height which is really squat. This should give me decent results? Because 14" is quite far rom what Dr. Resonance said about 24-26" with 30g wire....which would obviously be way more turns.....
John, Well if you make the coil a little taller, then you can install a larger NST at some point in the future if you'd like. For example you could make the secondary 19" tall using 28awg wire. This would be the same height as my TT-42 coil which uses a 12/30 NST and gives 42" sparks using a synchronous rotary gap. This would give somewhere around 1300 or 1400 turns which is a very good number of turns to use in a modern style coil. For the TT-42 coil, I wanted to keep the coil somewhat compact so I placed a smaller sub-toroid under the main toroid to prevent the sparks from striking the primary coil. <http://hometown.aol.com/futuret/page3.html>http://hometown.aol.com/futuret/page3.htmlJohn