The Double Zepp  The W3EDP  Longwire with MTFT 
Feeding the Double Zepp with Baluns 
Aperiodic antenna 1040m  VerticalL 
Feeding the Random Wire Double Zepp
The antenna left is a 2 x 13,5m DoubleZepp at EA8/DK7ZB Fed with 14 m Wireman cable In the background is a monoband dipole as InvertedVee for 20 m 
The antenna is fed with a TransmatchTuner and Baluns 1:1 or 1:4 for the bands 40m and up
Ideal are capacitors with 350 pF,
here has the right C 140 pF, an additional pluginC has 100 pF, if the capacity is to low for tuning on any band. This box handles 700 Watts RF. 

The input is fed with a current Balun, the output is connected optional to a Balun 1:1 or 1:4. In this case with the Double Zepp in EA8 I need the following combinations: 
40 m  Balun 1:1 with additional 100 pF 
30 m  Balun 1:4 
20 m  Balun 1:4 with additional 100 pF 
17 m  Balun1:1 
15 m  Balun 1:4 
Balun 1:1 2x18 turns PTFEcable bifilar on FT24043, connected to the output socket of the Transmatch 
The Balun 1:4 on a FT24043 can handle 1 KW. 2x8 turns PTFEcable bifilar. Parallel to the input is a C with 12 pF/1KV for a better SWR (here made with 4x12pF/500V). In the input line is a current Balun with 9 turns of Aircell5 coaxcable on FT24043. Also good for 1 KW. Picture down. 
The Tuner with the current balun for the input and the output balun for the Wiremancable