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6:1 Voltage Balun
Requiring a balun to feed a balanced antenna from an un-balanced load with a impedance step up from 50ohms to 300ohms, a 1:6
post 08 Feb 2024
Toroid & balun Links →
1:4 Guanella-Balun Current-Balun
The purpose of this article is to show how a 1:4 Guanella current balun changes an impedance level by a multiplier of four; for example, 50-ohm coax to a 200-ohm antenna
Constructing a 6:1 RF transformer
If it's using used a 50 Ohm coaxial transmission line, the main problem in constructing a 1:1 current balun using bifilar windings is that you have to get the impedance of the transmission line formed by the two parallel wires exactly correct
Balun & Chokes
I chose the LFB095051 ferrite tubes - sleeves with similar characteristics to the Mix31, therefore excellent for 80 and 160
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The purpose of this article is to show how a 1:4 Guanella current balun changes an impedance level by a multiplier of four; for example, 50-ohm coax to a 200-ohm antenna
If it's using used a 50 Ohm coaxial transmission line, the main problem in constructing a 1:1 current balun using bifilar windings is that you have to get the impedance of the transmission line formed by the two parallel wires exactly correct
I chose the LFB095051 ferrite tubes - sleeves with similar characteristics to the Mix31, therefore excellent for 80 and 160
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