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I just have one question for you: Is there a way to reduce loading coil losses? I read on some websites that i must to make a loading coil with a bigger diameter form. And some others said that an air core coil is the best. There have one store near from my home that they sell some air core coils. For example, 0.6 mH air core coil costs about 4.99$. I know the tricks about cutting somewhere in the air coil for bringing back to 0.35 mH.
I would like to have your opinion.