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Box for a balun or unun of your desired configuration wound on a FT240 toroid. Features: M5 bind terminals with winged nuts used to quickly connect or disconnect antenna radials. The ring with 8 holes in the middle of the bottom part is…
T140 & T240 versions Case for making a portable balun/unun matching transformer capable of 100w when made with the below components. FT140-43 FAIR-RITE FERRITE CORE TOROID RING…
Hello! This is a case to fit antenna baluns you either bought or create. In my case, I bought the balun from Funkfieber for QRP operations. 89mm long x 44mm width x 37mm height 3 x 6.5mm holes (for banana type female connector and earing…
A 49:1 box for an end fed antenna printed 3 perimeters, 6 top and bottom layers, infill doesn't matter. Category: Electronics
Thanks to Lukáš OK1ECH and his excellent universal balun/unun box. I wanted to make a RF choke (or 1:1 unun), and since he posted the f3d file, it was easy to update to add two coax ports (SO-239 or similar). I also changed it to M3…
Portable, pack style antenna. The parts to be printed are - Antenna matching circuit enclosure, loading coil bobbin, wire end insulator, and wire winder for an end fed half wave antenna. The shape of the UNUN enclosure is intended to…
interior dimensions are 55mm X 70mm X 32mm. Holds a 140-43 toroid with a little extra room for thick coax or wire if needed. uses m3 screws all around to mount the end connectors and to secure the lid. Great for those in the ham radio…
I have a 53-foot long wire antenna I use for portable ham radio. Used with this unun, it works surprisingly well, but winding it up when I'm done was a pain, so I designed this to mount to the back of the unun. This uses an M8 bolt, nut…
Transformer for end fed antennas, 49:1. Parts needed: 140-43 ferrite 100pF mica capacitor(optional, needed for higher bands) BNC chassi connector Lab power supply connector or similar 1m approx. 1mm copper wire Tested with 2530ohm dummy…
I've made these small footprint wire strain reliefs for portable operations, where the wire can easily be set up and also removed again when done. The slits are 2 mm wide, suitable for the specific 20 awg / 0.5 mm insulated wire that I'm…
I use the excellent 50W version of the 49:1 unun by Spark Plug (WO9B) for some of my portable end fed half wave field antenna deployments. I wanted more options to secure the transformer in the field, so I designed this small slip-fit…
This is an enclosure that I designed for the EARCHI 9:1 unun. It also works well with other baluns or ununs using the T130-2 powdered iron toroid or other toroids with similar diameter. There are two options. The first option uses binding…
The box and the cover should be printed with PETG, 4 perimeters, 4 top and 4 bottom layers the mast attachment should be printed with TPU, 15% infill. I use a simple verlcro with a buckle attached.
An enclosure for ununs or baluns that use a 140-size or smaller toroid core, e.g. FT140-43. The holes for the output terminals are sized to be a snug fit for #8 screws. Requires 4 M3 screws to secure the lid.
3D printable topographic miniature of Gunung Hiri - 🇮🇩 Indonesia Capture the beauty of Gunung Hiri 's city landscape with this topographic miniature! This 3D model represents the geographic area around the geo coordinates 0.898, 127.317…
3D printable topographic miniature of Gunung Hiri - 🇮🇩 Indonesia Capture the beauty of Gunung Hiri 's city landscape with this topographic miniature! This 3D model represents the geographic area around the geo coordinates 0.898, 127.317…
