B4-1.5K

4:1 Voltage Balun

Balun Type	Voltage
Ratio:	4:1
Operating Bandwidth	80 - 10 meters
Power Loss, dB	< 0.8 dB
Saturation Resistant	Yes
Internal Transmission Line Z	40 Ohms, equivalent
Core Type	Ferrite
Power Rating @ 3.5 MHz	1.5 kW if SWR < 3:1 *
Output Balance	Good
Load Variation Tolerance	Good
Input connector	SO-239
Output Connector	Wire
Size	2.3" x 8"

* CW/SSB duty-cycle only. Not rated for AM, FM, RTTY or other high duty-cycle modes.

Applications: Folded dipoles, delta-loops, and any general 200 - 300 ohm application.

A Great 1.5 kW, 4:1, Broadband Balun

Something Special

An effective, wideband design
Laboratory developed and optimized
Oversize components
Saturation resistant design
Special high voltage wire insulation
L-C Network compensation greatly improves bandwidth
Wire from internal windings are brought outside the case where you solder them directly to your antenna wire. No unreliable connections.
Stainless-steel eyebolts

You won't find this level of performance in a 4:1 anywhere else!

The improved B4-1.5K balun is a saturation resistant 4:1 design that uses a very large ferrite core. The core is nearly twice the size of conventional baluns. Internal transmission lines are made with special, high voltage, high temperature wire. Wire insulation is similar to Teflon®. This balun features L-C compensation for maximum bandwidth and efficiency, a RADIO WORKS exclusive design.

The B4-1.5K stands alone as the low cost performance leader. No other balun provides excellent output balance, saturation resistance, wide bandwidth and low price!