Homebrew Portable T-Match ATU

VK1AD Portable T-Match Antenna Tuner (ATU) mounted in a plastic case L1 is tapped at turns: 1, 2, 3, 4, 6, 8, 10, 13, 16, 20, 26 and 37. The vernier dials enable logging of each capacitor setting, which can be repeated at the next activation. This has so far proven sucesful for the 27.2…

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