case for 6-40 end-fed antenna unun
thingiverse
This design is tailored to house a T106-2 toroid to build a unun similar to the Earchi 6-40 end fed antenna (https://earchi.org/92011endfedfiles/Endfed6_40.pdf). The necessary hardware includes: * A T106-2 toroid * Three 20in lengths of 20 Gauge enameled wire * A BNC connector: http://www.kitsandparts.com/BNC.jpg * Four M3 machine screws for the top (https://www.mcmaster.com/92000a120) The following can be modified to suit your needs: * Banana jacks or screws may be used instead. The holes are 4mm in diameter, making it possible to use #6 stainless hardware. * Ring terminals (two for toroid connections and two for antenna and counterpoise) can be adapted using examples like https://www.mcmaster.com/7113k34 * Two hex-head screws for easier internal handling * Two flat washers * Two bolts * Two split washers * Two wing nuts
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