Yet another End Fed Half Wave transformer
I enjoy making different transformers and discuss transformers in several of my videos in Swedish, but this one is in English for some variety... except that it's still about transformers. I test two different 49:1 end fed half wave (EFHW) transformers, one with 3 primary windings (and a capacitor) and the other with 2 primary windings (without capacitor). I'm also ranting a bit about RG58 coax and antenna efficiency. The transformer enclosure is a RND 455-00997 (by RND Components). Probably bought from here https://www.elfa.se/sv/plastlada-58x6... Videos referenced in this episode: • EFHW för 80-40-20-10+30m (ändmatad halvvåg... • Zenitkonceptet | Radiokommunikation | Kortvåg • 49:1 vs 9:1 Vilken har mest förlust? • Ändmatad vs dipol - uppföljning • Ändmatade antenner (longwire, randomwire, ... Articles mentioned in the video: https://github.com/sa6mwa/miscellaneo... NEC2 antenna modelling of EFHW vs LW vs dipole: https://github.com/sa6mwa/nec2-gnuplo... Gear seen in the video... http://www.sark110.com/ http://www.amidoncorp.com/ft-140-43/ Enclosure for the transformer by RND Components. Support The Outsender on Patreon... / outsender
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