B4-2KX

Precision, high power 4:1 CURRENT balun

Balun Type	Current
Ratio:	4:1
Operating Bandwidth	160-10 m
Power Loss	<.8 dB
Saturation Resistant	Moderate
Internal Transmission Line Z	» 45 Ohms
Core Type	2 x Toroid
Power Rating @ 3.5 MHz	1.5 kW if SWR < 3:1 *
Output Balance	Excellent
Load Variation Tolerance	Excellent
Input connector	SO-239
Output Connector	Wire
Size, case	3.5" x 3.5"

* Important: Not rated for AM, RTTY or other high duty-cycle modes. Power rating is for normal SSB and CW duty-cycles only.

Applications: All B4-1.5K applications. Folded dipoles, delta-loops, or any general purpose 200 - 300 ohm applications. Use the B4-2KX in precision applications: Wire beams, KT-series Yagis, etc.

This is it! A real 4:1 Current Balun.

Laboratory Developed

Fresh Design Approach

Large Toroidal Cores

Precision transmission line designs

Special, Large Gauge, High Temperature, High Voltage Wire.

Compensation Network for Wide Bandwidth

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Special ferrite toroids manage reactance and provide the very high inductance values necessary in a 4:1 balun. The B4-2KX is a precision CURRENT balun, using two large, efficient, toroid cores, and heavy, high-voltage wire, along with special winding techniques. All this, combined with our exclusive, built-in L-C compensation networks achieves wide bandwidth, excellent output balance and a high power safety factor. It's an unbeatable combination. They're unbeatable baluns.