Topband: Two 2:1 transformers to choose from!!

[James Rodenkirch]

I received enuff "info" and thoughts to know I'll utilize the 5:7 winding version.  Thanks to all that replied!
 
72, Jim Rodenkirch K9JWV
 



From: rodenkirch_llc at msn.com
To: topband at contesting.com
Subject: Two 2:1 transformers to choose from!!
Date: Wed, 21 Aug 2013 13:23:37 -0600




I have two impedance transformers wound on BN 73-202 cores that I can use for the 2:1 impedance transformer I need for my FO0AAA delta receiving antenna.  
 
One has a  2 turn and 3 turn winding- giving a 4:9 impedance ratio.  The other has a 7 turn and 5 turn winding, giving a 25:49 impedance ratio.  I don't know which would be better - I believe the one with more
 turns probably has better coupling, but more loss?!?!
 
I am splitting fine hairs here but....I am curious if one might say, 'Use "x" instead of "y," Jim....Thoughts???
 
72, Jim Rodenkirch K9JWV