Balun Designs

The venerable 1:1 isolation/choke balun is the first of our new line of DIY kits.  All components are the same as those used in our pre-assembled  units. The completed balun will have an...

Package of 10 tinned copper #8 ring terminals.  These fit the #8 studs used on our small black QRP models and will accept wire sizes up to 14 gauge.   Note...

Package of 4 tinned copper, heavy duty ring terminals.  These are custom cut to easily slide under the outer locking nut of the 1/4" eyebolts used on our suffix "e",  ...

Nice 8X6 inch, UV protected, 1/4" thick polymer mounting plate for attaching balun or unun to mast, boom, tower or whatever.  Includes 2 stainless steel clamps of your choice in...

Strong polymer plate for center insulator and strain relief when constructing large or multiband dipoles.  Includes all stainless steel hardware for mounting a Balun Designs standard...

Strong polymer plate custom sized to be the center insulator and strain relief when constructing a portable or temporary dipole.  Includes all stainless steel hardware for mounting a...

Package of 10 tinned copper, heavy duty ring terminals.  These fit our 1/4" studs and are designed for 10 or 12 gauge wire either solid and stranded.   Note these terminals fit...

This low power balun is one of our newest offerings and provides over 30db of suppression across the full HF spectrum of frequencies. Our design provides high levels of feedline isolation, RF choking...

We're bring back one of Dr. Jerry Sevick's (W2FMI) original designs but with upgraded windings.  This balun was one of our original workhorses and now with new coaxial windings, provides a...

Balun Designs, in collaboration with Fair Rite products, has developed what we consider to be the best single core 1:1 feedline isolation balun available today. By reviewing the scans shown below you...

Building on the original 1:1 design by Dr. Jerry Sevick, this balun has two (2) low permeability cores in a stacked configuration to maximize choking impedance on HF bands from 7- 54MHz. By utilizing...

Our "i" series of feedline isolation baluns provide excellent feedline decoupling and, depending on the model selected, low loss performance across the full HF spectrum. The model...