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K9AY version 1
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!!TRANSFORMERS winding - very important thing! ** for 50 ohm coax feed line : 2 turns on primar (coax) and 6 turns on secondar side (loop) ** for 75 ohm coax feed line : 2 turns on primar (coax) and 5 turns on secondar side (loop) [https://remoteqth.com/img/ZAW-WIKI/Bi-Dir_1out/20.jpg|noborder]
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