From: pds@ktb.net   
      
   When checking out transformers for my next project, I noticed that   
   Hammond has a new "A" series of push-pull output transformers.  They are   
   more expensive than the standard series and I am curious if any RAT's   
   have experience with these and can report if they measure or sound any   
   better.   
      
   The minimal specs Hammond publishes look the same for the standard and   
   "A" series.  The difference seems to be that the "A" series has a single   
   tapped secondary for 4/8/16ohms like the Dynace ST70 OT's and many   
   others.  The standard Hammond PP OT's have two secondaries (4ohm and   
   4/8ohm) that are wired in various configurations to get the desired   
   secondary impedance.  If I remember correctly, the 4ohm windings are   
   wired in parallel for 4/8ohm output and in series for 16ohms.   
      
   If the "A" performs better, then I may pay the extra amount.  If this is   
   only about convenience, then I'll save $50 or so and configure the dual   
   secondaries as before.   
      
   Comments?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)