Re: 1st coil running, but tuning issues..

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

Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 3/2/03 4:02:10 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:


>Generally the comments I got back when asking the same question of
>performance from a 6/30 were that 10" is about what to expect.  "Small
>coils don't tend to follow the 1.7 x P^0.5 equation"
>
>Cheers, Chris.  (NZ)


Chris,

My TT-32 coil gave about 20" to 24" sparks when powered by a
normal Jefferson Magnetek 6/30 NST and a SRSG.  It's true the
spark is shorter than the formula predicts, but not that much shorter.
I do feed the coil with 140V for a 120V NST.  I don't remember how
long the spark was when fed with 120V.  I used a 3" x 10" spun
toroid.

John