If you cut resonate dipoles for 40 and 80 meters,
attach them to the same center insulator and
feed with coax,all you have to do is either have
the 40 meter wires angled down more under the 80 meter
wires, or pulled off at an angle.
It won't bee very wide banded, but it'll
work without a tuner.
This type works great for AM since most AM activity
is near the same frequency on each band.


73, Ron kc4oy