LL1522

LL1522 is a high impedance line input transformer, normally used 2:1
It has been discontinued for many years.
 
LL1522 pinout (pin side)
 
4, 3, 2, 1
 
 
 
8, 7, 6, 5
 
For high impedance line input, 2:1  use as follows:
 
In+     4
In-     2
Connect 1+3
 
Out+    8 + 5
Out-     7
 
Ground (shield)  6