Re: space winding?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: gary350@xxxxxxxxxxxxx 



-----Original Message-----
>From: Tesla list <tesla@xxxxxxxxxx>
>Sent: Jun 5, 2006 8:59 PM
>To: tesla@xxxxxxxxxx
>Subject: Re: space winding?
>
>Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>
>
>
>
>Running a 12/60 NST you will see less performance, not more.  Less
>number of turns, lower inductance and hence less output per lineal
>foot of coil winding.  The trade-off is resistance vs
>inductance.  Beyond 1,400 turns no gains --- we have tested various
>coils up to 3,200 turns and gained nothing above 1500 turns.
>
>Dr. Resonance
>


Interesting, what diameter secondary coil were you experement with?

I built several 6" close wound secondary coils once, one with 1000 
turns, one with 1250 turns, one with 1500 turns.   I tested each 
secondary coil on the same primary coil using the same cap, same 
spark gap, same power supply, same top load.  Power was 15K 90ma.   I 
retuned the primary and spark gap trying to get best output and even 
swapped out top loads the 1000 turn secondary performed the 
best.  Next I built and tried a 900 turn, 700 turn and 500 turn 
secondary coil and the 900 turn secondary worked the best.  Next I 
compaired the 900 turn coil to the 1000 turn coil and could not tell 
any difference they both worked about the same.  After that I built 
all my secondary coils with 950 turns close wound copper wire.

I did this experement with only 1 tesla coil using a variety of 
different 6" secondary coils. I never tried this experement with my 
4" TC or my 8" TC the results might be different or could be the same.

Gary Weaver