Jo, YC0LOW wrote:
>> I plan construct an Un-Un for my inverted-L which has feedpoint impedance
at 23 Ohms, so a
2.25:1 would be ideal. I use 50 Ohm coax as feedline. I have the Amidon
T-200-2 cores. Has anybody ever used this core for a topband Un-Un? If so,
how many trifilar turns and what size of wire? Please, e-mail me direct
Sorry, I could not find any related clue in the topband reflector's archive.
<<
Jo,
I have used iron powder cores and it works, but ferrite is supposed to be
the way to go so I am now using FT240-61 for my un-un. I found this website
helpful in the construction of the un-un;
http://www.k0bg.com/unun.html
73 de Björn /SM0MDG
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