'Doc wrote:

As for the 'why' of doing it that way, I can think of
several reasons, both intentional and not, ranging from
a "lets see what happens", to "oops, forgot to disconnect
the thing"...

It was the "lets see what happens" situation. I brought the balun home
to test with a dipole, and got a flash of inspiration. Unfortunately, I
really needed eyelets on the input and the output of the balun and just
lashed it up.

I really didn't expect much but was amazed that it worked - and
frustrated at the same time because schematically it looked so bogus
having two baluns on each end of the feedline.

73 de WN6F