>> what type of ferrite material is needed to construct thisa type
>> of balun?
> For a balun of this type, what matters most is LOSS, not
> permeability. I would use a Fair-Rite #61 material, which has the
> lowest loss of any good material I know of. This is the material
> commonly sold in the ham market as FT240-61. For high power, I would
> use at least two of them, as is done in the TenTec 229 and 238
> tuners. Done this way, you'll get more flux for the same number of
> turns, and the heat will be divided between the two of them.
> Jim Brown K9YC
What would you use in a 6M application, please?
Thanks! & 73,
... somewhere in FL
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