10-80 meter modified Digitenna - ft140-43 toroid
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This model is for the 10-80 meter version of the modified digitenna. Made for 26-24 gauge
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Model information
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- Printables
- Category
- Other Gadgets
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- Creative Commons — Attribution — Noncommercial — Share Alike
Parts:
ft140-43 toroid.
100pf ceramic capacitor of at least 3k - https://amzn.to/3MPVbuk
16 gauge magnet wire - https://amzn.to/3N01ifw
134 ft DX Engineering 24 gauge Hi-viz wire
(4) #6 x 3/4 stainless screws
Optional, but suggested.
Wago connectors for testing - https://amzn.to/4qoLhy8
I included a small ring used for assembly. Insert the "back center" into the shell, put the ring on inside the shell, and then put on the inner section. Drill a small hole for the wire and then remove the inner and the ring, reassemble and continue.
At 67 feet you will need to cut the wire and put in a capacitor to get the antenna to tune into the voice portion of 80. You should try multiple values to get it to tune properly. I cut the wire and put a piece of string, using glue lined heat shrink to connect them. I use Wago connectors connected to the wires so I could test various capacitors.
See assembly photo.
The toroid gets 3 primary and 21 secondary windings. It is a total of 24.
Added N3DLU 2 piece handle to the file list