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)

Replacement enclosure for a damaged balun or unun.  If you would like the enclosure pre-drilled, please enter your model number where indicated and it will be drilled to our current specifications. If you prefer a blank enclosure, insert the word...