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End-fed wire antennas with 9.1 balun
The balun trasnsform the very high impedance at the end of a half-wave wire to about 50 Ω
post 09 Jul 2024
Toroid & balun Links →
Balun 1:64 for end fed, PD7MAA
Build a legal limit current balun for 160 - 10 metersWind two FT240-61 ferrite core
Misure di una ferrite sconosciuta, IW2FND
In practice, just wind a coil around the core of the ferrite and measure the inductance
Creating a balun, G0KSC
For 50Ohm direct feed antennas, just a 1:1 balanced to unbalance transformer is needed
Balun di tensione 1:32
Toroid FT140 / 43 0.9 enamelled wire for primary winding
Circuito balanceado a um circuito desbalanceado, PY4ZBZ
Examples of BALUN made with coaxial cable stubs
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Build a legal limit current balun for 160 - 10 metersWind two FT240-61 ferrite core
In practice, just wind a coil around the core of the ferrite and measure the inductance
For 50Ohm direct feed antennas, just a 1:1 balanced to unbalance transformer is needed
Toroid FT140 / 43 0.9 enamelled wire for primary winding
Examples of BALUN made with coaxial cable stubs
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