An End-Fed 160-10m Long Wire Antenna with a QRO 9:1 Un-un and 1:1 RF Choke Balun – Q82.uk – Antenna Resources by Steve G0UIH – ex Vortex Antenna Systems
Shortwave Listener Antenna - with MLB-2 Magnetic Longwire unun, 50 foot antenna wire, 25' support cord, end insulator
50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antenna - End Fed Long Wire Antennas - Palomar Engineers®
9:1 Magnetic Longwire Balun / Unun – M0UKD – Amateur Radio Blog