From: charlesschuler@comcast.net   
      
   "GRe"  wrote in message   
   news:5087c1e5$0$6871$e4fe514c@news2.news.xs4all.nl...   
      
   Some time ago I found a small transformer in the junkbox.   
   It looks old, like from the forties or fifties era.   
   I don't remember where it came from or was cannabilized from.   
   Anyway, today I took the trouble to measure it.   
      
   Winding W1:   
   Rdc = 32ohm   
   Saturation at about 50V, W2 open   
   Inductance 8.82H @ 10V/50Hz   
   Inductance 6.58H @ 10V/100Hz   
      
   Winding W2:   
   Rdc = 29ohm   
   Saturation at about 37V, W1 open   
   Inductance 5.36H @ 10V/50Hz   
   Inductance 4.11H @ 10V/100Hz   
      
   Winding ratio N = 1.34   
   Impedance ratio = 1.79   
      
   F-response -3dB @ 27kHz with a 600ohm load on W2   
      
   +3dB @ about 80kHz with (almost) no load on W2   
   +22dB @ 186kHz resonance with (almost) no load on W2   
      
   Iron lamination dimensions 48x40x20mm   
   It's "tarred" and has NO airgap   
   Beside end taps, no additional taps on W1 and W2   
      
   What could the purpose have been?   
   Anybody any idea???   
      
   Telephone application?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)