From: phil_a@tpg.com.au   
      
   "GRe"   
   > "Phil Allison" "GRe"   
   >>   
   >> ** Almost certainly it's a high quality, 600 ohms line driving   
   >> transformer.   
   >>   
   >> The primary impedance is about 1000 ohms and so suits cathode drive from   
   >> a   
   >> small power tube, via a coupling capacitor.   
   >>   
   >> Max operating level is about 10 volts rms, with 13 volts drive on the   
   >> primary.   
   >>   
   >> Line receiving versions were usually fitted into a ( mu-metal) shielding   
   >> can.   
   >   
   >   
   > Sounds like a bull's eye shot to me!   
   > With a line transformer application in mind I did some more tests.   
      
      
   ** You are wasting your time with irrelevant tests.   
      
   The tranny is intended to be driven from a low impedance source ( circa 50   
   ohms) and that tends to irons out effects due to low magnetisation.   
      
   You need a THD meter to make sense of what matters and what does not.   
      
      
      
   ....   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)