Doublets

This new release provides excellent choking and feedline isolation across the full HF spectrum, but is a departure from the normal 1:1 isolation/choke balun.  Rather than a 50 ohm characteristic impedance, this balun utilizes a bifilar pair designed...

For those who would like the combination of a 4:1 balun capable of tolerating a compromised Off Center Fed Dipole or multiband loop installation and still provide the highest possible level of performance, the model 4116 is the solution. As the title...

This is a departure from the normal 1:1 isolation/choke balun and utilizes a bifilar pair designed to maximize inter winding breakdown voltage. The balun functions to transform balanced twin lead, ladder line or open wire to unbalanced coaxial...

If you transmit high power, but need to erect your antenna with a leg over or near your house, barn, garage, metal building/roof or other structure, this is the balun of choice. Our unique design provides increased power handling, doubles the...

This is a departure from the normal 1:1 isolation/choke balun and utilizes a bifilar pair designed to maximize inter winding breakdown voltage. The balun functions to transform balanced twin lead, ladder line or open wire to unbalanced coaxial...

This is a balun originally designed by Guanella and subsequently improved by Dr. Jerry Sevick (W2FMI). By utilizing Thermaleze wire inserted in Teflon tubes, Dr. Sevick was able to substantially increase the breakdown voltage between both conductors and...