Try these links:
http://www.anarc.org/naswa/badx/ante...e_antenna.html
http://www.anarc.org/naswa/badx/ante..._longwire.html
MiniCircuits makes 9:1 transformers if you aren't up to winding your
own:
http://www.minicircuits.com/transf.html
http://www.minicircuits.com/dg03-238.pdf
I use the T9-1, rated for .150~120MHz.
Works to well below 100KHz.

I found I got a slightly cleaner, better noise isolation from our home
by adding a T1-1 (1:1) at the halfway point and not tieing the grounds
in common.
One of the ham radio antenna sites I frequent has mentioned the
minicircuits are porne to getting zapped by ligthening. My antenna
has been up 3 years, and I had a tree split by a bolt with no effect on
the transformer.
Terry

Terry