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