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End Fed Antenna EFHW Winder
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0.2mm layer, 2 walls, 15% infill
Designer
3.9 h
4 plates
0.2mm layer, 2 walls, 15% infill NO AMS
Designer
3.8 h
4 plates
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Description
EFHW 10-20-40 m antenna
End Fed winder for 240 size toroids, suitable for EFHW antennas.
- SO239 connectors
the spool can easily accomodate more than 20 meters of AWG20 wire, to build a full size 10-15-20-40m EFHW antenna
easy to build (pictures are self-explaining).
My builds are made according to standard EFHW projects with FT240-43 toroid and 100pF high voltage capacitor, I use them up to 100w SSB without issues.
My favorite solution is with “split” 10+10m of wire (with quick connectors), so I can use a short 10m antenna for 10-15-20m and deploy 20m of wire to cover 40m band only when needed.
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24 november 2024
increased width of model lid and added supports
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