![]() ![]() 50 ohm primary is 3 x 6 turns, wired in parallel. The winding ratio is 6 turns to 18 turns. ![]() This balun was made with single ferrite core, Jaycar L01234) wired using single strand Cat 5 UTP wire. The raw End-Fed antenna will go through impedance swings as high as 5K Ohms,or more, at even multiples of its 1/4 wavelength design frequency Unun transformer unbalanced to unbalanced. Windings are inserted into Teflon tubes increasing total breakdown to 10,000 volts. 14 gauge Superior Essex Heavy build polyamideimide Allex 240 Winding Wire. Requiring a balun to feed a balanced antenna from an un-balanced load with a impedance step up from 50ohms to 300ohms, a 1:6Ī balanced antenna from an un-balanced load with a impedance step up from 50ohms to 300ohms, a 1:6 Voltage balun design using two L15 ferrite toroid cores was selected Individual core wound with trifilar set configured as 1.5:1 unun. The 200 ohm secondary is formed by adding 3 turns to either end, giving 12 turns overal The winding ratio is 6 turns to 12 turns. This balun was made with two ferrite cores, Jaycar LF1258)wired using Cat 5 UTP wire. ![]()
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