This is a Balun box and cover I created for an FT-2643251002 Toroid
also included is an insolator with a slot for velcro - to hold an excess length in tight loops and to hang the wire
Be forewarned - construction space is tight
You will need
1 FT-2643251002 Toroid
4 M3 x 8mm for the cover ( that's it)
2 M4 x16mm (for the antenna and ground - washers, nuts and wing nuts)
1 100pF 3kV ceramic capacitor (TDK CC45SL3FD101JYVNA or Equivalent)
1 BNC Chassis Mount connector ( screws, washers and lock nuts)
18 or 16 AWG magnet wire ( 140 cm for tapped, no crossover, autotransformer wiring)
Box_Cover_49to1_FT-2643251002.stl | 492.9KB | |
Box__BNC_FT-2643251002_v7.stl | 194.7KB | |
Isolator_v5.stl | 481.9KB | |
Jig_-__1002_Box_v2.3mf | 43.1KB |