Doublet Center 450 Ohm
thingiverse
Center strain reliever for a 450 Ohm fed doublet antenna. The wire dimension has been optimized for a snug fit of Davis RF PolyStealth #18 wire. The window is to prevent water from from pooling around the solder connections. Screws are 12 mm M4. I use this for a 100' non-resonant doublet. Would also work fine for a G5RV or ZS6BKW. Created using OnShape. Let me know if you want a link to the OnShape document (e.g. to customize the wire slot dimension). Printed with 2 perimiters. 0.2 mm layer height. 30% infill. Print “top” with washer cutouts facing down and support from build plate. Print “bottom” with nut cutouts facing up and no supports.
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