Re: space winding?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>


I once read a nylon fishing line could be wound on a secondary coil 
along with an enamel coated copper wire.  Give the finished coil 1 
coat of polyurthane and let it dry.  Unwind and remove the nylon 
fishing line then give the coil another coat of polyurthane.  There 
is an optimum spacing for each wire size and coil design.  The extra 
spacing will increase the voltage rating of the secondary coil.  I 
think if you do so research and do the math you can probably 
calculate the best Q of a given coil.  Not sure how much noticable 
improvement you will actually be able to see in the performance of 
that coil.  The extra voltage rating might be helpful in high power 
coils and not so helpful in small low power coils.

Gary Weaver"

   I've used monofilament line for that purpose - nice and cheap and 
available in a variety of diameters.  Used it on a small (3" x 14") 
coil and thought it wasn't worth the trouble.

Ed