This assembly is a double stack of mix 31 toroids, a high permeability mix used by Balun Designs for many coax wound 1:1 baluns. High permeability suppression mix provides excellent choking performance but should be used with 1:1 ratio baluns only...

This assembly is a double stack of medium permeability mix 43 toroids. Best choice for medium to high power End Fed Half Wave transformers (=< 1kW)

This assembly is a double stack of a low permeability (<300) toroids, a custom ferrite mix used by Balun Designs for most wire wound designs. This mix is the best choice for a coaxial wound suppression/choke balun used from 7-54 MHz The low...