I have a schematic for a delta shaped loop that shows I'll need an 18:1 transformer to transform the 950 ohms of the antenna to 50 ohms (feeding it with 50 ohm coax). One transformer diagram shows an FT-140-43 core being used. BUT, looking over some of Tom's, W8JI, write-ups, I see where he uses 73 material instead. I see where 77 material replaced 73 material so -- is an FT-140-77 the mo betta way to go? Thanks, in advance, for any advice/info. Jim Rodenkirch K9JWV _________________ Topband Reflector
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