Typically the matching transformer transforms the impedance from the value of around 4,000 or 5,000 Ω at the EFHW antenna feed point down to the 50Ω value​ ...
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efhw-transformer
Nov 1, 2018 — Transformer 1:64 made of a FT 140-43 toriod and 1mm enamelled copper wire, turns ratio 3: 24. Primary and secondary winding are twisted. The .... End Fed Half Wave EFHW 49-1 Transformer 80/40/20 M HIGH POWER Triple Core.. ... from all over the World. Click to find the best Results for efhw Models for your 3D Printer. ... Tags 49:1 EFHW 2x FT140 Transformer Box. Text antenna, efhw ... 939c2ea5af