Richard Clark wrote in
:

Look at your lamp zip cord - close enough.

There is an interesting example.

K8ZOA published a characterisation of ZIP line some years ago in this
groupd, and Zo is approximately 100 ohms.

Considering a half wave of ZIP cord with a load of 100+j0 at 14MHz, loss is
around 1dB.

Now, using N7WS's characterisation of Wireman 551 ladder line, again a half
wave at 14MHz, smaller conductors, wider spacing, longer, Zo=400, higher
VSWR, the loss with a load of 100+j0 at 14MHz, loss is around 0.14dB.

Owen