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DL4YHF – Ham Radio and Homebrew October 3, 2009 by dapj · Published October 3, 2009 · Last modified October 27, 2019
QRP Homebuilder VE7BPO – Radio Design November 2, 2009 by dapj · Published November 2, 2009 · Last modified December 30, 2020
Ham Shack of W5JGV – Ralph November 4, 2011 by dapj · Published November 4, 2011 · Last modified January 16, 2020