Spiderbeam DUAL CORE Balun (Kit)
A904
Material kit for the high quality W1JR type coax choke kit with 2 ferrite rings
This is basically the same balun as used in our Spiderbeam Yagi antennas: This model has just 2x FT-240/61 cores
for higher power, instead of 1 core (standard balun). This W1JR type
coax choke-balun has extremely good balancing properties on 10 - 28 MHz
and quite good balancing properties on 3.5 - 7 MHz. It is very well
suited as a high-power balun for all 50 Ohm antennas in this frequency
range. It uses high quality components (Fair-Rite ferrite toroids,
Teflon-insulated coax cable and a rugged UV-resistant plastic
enclosure).
Note: all parts for assembling a single core standard balun are included with all of our Spiderbeam Yagi antenna kits.
We are offering this high-power version with 2 cores as a quality
add-on for our Spiderbeam Yagi antennas, or as a stand-alone product for
any other 50 Ohm antenna you may build.
Weight: 650g (23 oz.)
Maximum power:
For antennas with an SWR < 3:1 - 3500W
For antennas with an SWR > 3:1 - 1500W
Contains:
1x [PA007] Aluminium U-profile
4x [PA009] Screw, V2A, M6x30
2x [PA010] Screw, V2A, M6x16
6x [PA012] M6 nut (V2A)
10x [PA013] M6 washer, V2A (outer diam.18 mm)
4x [PA015] M3 screw, V2A 10mm 4x [PA016] M3 nut (V2A)
6x [PA017] Rubber sealing washer (M6)
4x [PA027] M6 tube cable lug (90° angled version)
1x [PA030] Balun plastic housing / BOX, waterproof
1, 5m [PA031] RG142 coax cable 5mm (Teflon insulated)
2x [PA032] Ferrite toroid ring FT-240-61
1x [PA033] PL coax socket SO239 NP
1x [PA034] Rubber sealing washer for coax socket
1x [PA035] M3 solder lug (1 pole)
8x [PZ01-1] cable tie, black, 200x4. 8mm
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