Klu kesulitan membuat trafo 600 Ohm .........bgm pki rangkaian dbw ini yg menggantikan trafo:
Here is the "t" equivalent circuit for a 1:1 audio isolation transformer:
------R1---L1-----+----L2----R2------
Primary | Secondary
Side Lm Side
|
------------------+------------------
R1,R2 = primary and secondary winding (copper) resistance. Typically about 50-100 ohms. Not necessarily equal.
L1,L2 = primary and secondary leakage inductances. About 5 mH in "dry" tranformers. Not necessarily equal.
Lm = mutual inductance, about 2H. (about the same as the self inductance or shunt inductance)
dan bgm dgn ini : Cp = Primary Capacitance 150 pF
Rp = Primary D.C. Resistance 108 ohm
Lp = Primary Leakage Inductance 0.224 H
Rc = Core Loss Resistance 18 kohm
Ll = Secondary Leakage Inductance 5.38 mH
Rs = Secondary D.C. Resistance 120 ohm
Cs = Secondary Capacitance 180 pF
Semua bs dipelajari di link ini :
http://www.epanorama.net/circuits/teleinterface.html#tips