SO239 - Ham Radio Wire Winder for EFHW, 9:1, and Dipole Antenna
thingiverse
Build your own wire winder, end fed half wave, antenna for ham radio, or something. This is an SO239 version, I suggest a 60 percent infill with PETG, but I'm not your mother. I also have a BNC version if needed. How to build out the rest of your EFHW: https://youtu.be/osYYuDRcWfk
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