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Line Output Transformers

 
     
 
Line Input Audio Transformers
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Line output transformers with silicon iron C cores.

General properties:
•Low copper resistance
•High level capability
•For balance or unbalanced drive
•Silicon iron C cores

 
     
  Three-section output transformers with internal electrostatic shields.
Can be used with balanced or unbalanced drive circuits.
 
 

 
 
Type
Turns Ratio
Size
(LxWxH mm)
Max Prim.
Level. @ 30Hz
Drive type  
 
LL1517
1+1,ct : 1+1
47x34x19
+24 dBU
Universal output.
 
LL1585
1+1 : 1+1
47x34x21
+30 dBU
High level universal output transformer.
 
       
 
     
  Three section output transformers without internal electrostatic shileds.
To minimize capacitive coupling, the secondary windings are placed between the cold ends of the primaries.
For balanced and unbalanced drive.
 
     
 
Type Turns Ratio Size
(LxWxH mm)

Max Prim.
Level @ 30 Hz

Drive type  
 
LL1539 2 : 1+1 47x34x21 +27 dBU For balanced drive
 
LL1555 1+1+1+1 : 1+1 33x26x20 +27 dBU For balanced drive. Small size..
 
LL5402 2 : 1+1 43x28x21 +18 dBU For unbalanced drive
 
       
 
     
  Five section output transformers.
The high sectioning results in low leakage inductance and thus a very high frequency range.
 
     
 
Type Turns Ratio Size (LxWxH mm) Max Prim. Level @ 30 Hz Drive type  
 
LL1524 1+1 : 1+1 48x34x22 +24 dBU Balanced drive.
 
LL7401 1+1 : 1+1 47x34x17 +20 dBU Balanced drive.
 
       
 
     
  Special type output transformers.  
     
 
Type Turns Ratio Size
(LxWxH mm)
Max Secondary Level@ 30 Hz Drive type Comment  
 
LL1560 2+2 : 1+1+1+1 47x34x23 +20 dBU Balanced drive Four independent outputs active split.
 
LL1944 1+1 : 1+1+1+1 47x34x23 + 23 dBU Balanced drive Four independent outputs active split.
 
LL2811 1+1 : 1+1 31x26x23 +24 dBU Balanced drive Four section windings. Small footprint. Fits three in a row across a Euroboard
 
LL1582 1+1 : 1+1 31x26x23 +24 dBU Balanced or unbalanced drive Pin compatible with LL2811, but with internal electrostatic shields.
 
LL2734 1+1 : 1.4+1.4 + 0.3+0.3 66 x 39 x 53 +25 dBU Single end class A, 100mA DC For solid state SE output circuits, based on LO1166A