RE: Joining two rolls of wire on the secondary coil

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

Original poster: "Lau, Gary by way of Terry Fritz <teslalist-at-qwest-dot-net>" <Gary.Lau-at-hp-dot-com>

Your proposed coil dimensions, 4" dia. x 4 feet long, is too long by a 
factor of 2.  So the good news is, if you ran out of wire after winding 2 
feet, you're done!

But to address your original question, you can splice the secondary wire 
mid-winding, but the splice must lie perfectly flat.  Don't attempt to 
twist the two ends, just lay them side by side, overlapping by about 1/4", 
thoroughly strip the two ends, and apply just enough solder to make a 
connection.  You don't want the solder bump to be significantly higher than 
the windings, or else it will be a likely breakout point for corona or 
racing sparks.  It may also be a good idea to apply a blob of epoxy over 
the splice after the coil is wound.

Gary Lau
MA. USA

 >Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" 
<JACKBINTHEBOX-at-aol-dot-com>
 >
 >Hello!
 >
 >I'm in the process of winding my 4' x 4" secondary coil and I ran out of
 >wire midway.  I have a new roll and I need to connect the new wire to the
 >old.  Will there be any negative consequences to soldering the two wires
 >together?  Every secondary coil I've seen in pictures looks like it's made
 >of one continous wire, so I'm worried perhaps I should have bought a longer
 >roll.  I've spent 3 hours winding already and I don't want to go further if
 >the solder joint will somehow mess things up.  I can't imagine why it
 >would, but this is my first coil and I know squat!
 >
 >Please help!
 >Jack