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Micro End Fed Half Wave (uEFHW) Un-Un enclosure

Micro End Fed Half Wave (uEFHW) Un-Un enclosure

thingiverse

Portable version of the matching unit housing for QRP EFHW antenna. I used two stacked FT50-43 ferrite cores, with a wound autotransformer circuit with a 49:1 ratio. For winding I used enameled wire with a diameter of 0.7mm as you can see on photos. Such setup should allow you to work with ~10W of power.

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