"Jerry" wrote in
:

....
Try this one: www.k1jek.com This is a dipole that comes in lengths
of 73' and 140' respectively. The short one covers 80-10, the longer

Ah, the Cobra! An interesting antenna for exploration of the myth that
linear loading is essentially lossless, see my analysis of NEC models of a
Cobra design at http://www.vk1od.net/cobra/index.htm .

Owen