HFU HF Underground
Technical Topics => Equipment => Topic started by: NJQA on November 18, 2019, 1122 UTC
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http://ka7oei.blogspot.com/2019/11/homebrew-construction-of-2-and-4-port.html
I’ve become a fan of KA7OEI’s blog - excellent technical content, concise, and frequently on a topic of interest to me.