Topband: flag/pennant transformers/terminations

[Earl W Cunningham]

Ron, WA9IRV wrote:

"Pennants are 900 ohms and flags are 950 ohms.  Is there any practical 
concern about using a pennant-designed commercial box in a flag?  Do I
gain or lose if I use a 950 ohm resistor with the 900 ohm box?"
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The difference is so insignificant that there should be no concern.
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"If I roll my own with K6SE's recommended FT 140-77 core, should I add
another turn to the secondary, e.i. 3:14 instead of 3:13 (or some other
ratio) ?"
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The turns ratio for 50-ohm coax is about 3:13 in either case (900 ohms of
950 ohms), so this is insignificant also.  I suggest that you use 2 turns
on the 50-ohm winding and 9 turns on the high-impedance winding.  Do NOT
increase the amount of turns above that on either winding.

73, de Earl, K6SE