Re: Turns to secondary length ratio...

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

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>
 >
 > How long should a 3 inch secondary be for 1200 turns?

	I have a secondary on a 3.17" form (shellacked cardboard mailing tube
with outer and inner layers peeled off), about 1000 turns of #30, which
works just fine. Unloaded resonant frequency is about 360 kHz.  30"
streamers using a 9 kV, 60 ma transformer and 10" x 3" diameter toroid
on top and I'm sure I could do much better if I moved it where the
ceiling wasn't so close.

Ed