My very first antenna as a novice was a folded dipole made from 300 ohm twin lead and using 300 ohm twin lead as the transmission line as well. It is much stronger than you think, mine survived the Santa Ana winds just fine. A folded dipole that is one half wavelength long on 40 meters can also be used on 15 meters and will have a bit more bandwidth than a single wire dipole. A folded dipole does not have gain and operates exactly like a single wire dipole but with a higher feed point impedance and a broader SWR bandwidth.
Originally Posted by KF5BBB
A 4:1 balun can be placed between the 300 ohm feeder and you can run coax to the radio. The Balun can be inserted anywhere between the feed line and the antenna, even right at the antenna feed point but the weight of it will likely cause problems if you connect it directly to the antenna.
If it weren't for Philo T. Farnsworth we'd still be eating frozen radio dinners.