No. 120 Type Repeating Coils


  2- || -4
    )||(
    )||(
  1- || -3
     ||
     ||
  6- || -8
    )||(
    )||(
  5- || -7
  

                  Approx DC resistance of windings
                        1-2    3-4
code  Impedance Ratio   5-6    7-8
 C        1:1           7.8    5.5
 D      1.5:1          12.7    5.5
 E        1:1.5         5      5.5
 H        1:1           7.8    5.5
 J      1.5:1          12.7    5.5
 K        1:1.5         5      5.5




No. 251 Retardation Coils
           Approx Res
Code No.   Wndg. 1-8    replaces
 251A         4           182A
 251B        29.6         182B