Via Southgate: How to assemble a narrow cw filter

QRPer.com readers know that I’m a big fan of the venerable Yaesu FT-817 and FT-818 series transceiver – So much so, I own two FT-817NDs

Read more – Southgate Amateur Radio News RSS Feed http://www.southgatearc.org/news/2022/september/how-to-assemble-a-narrow-cw-filter.htm
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