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| RE || emitter resistance || 0.37<math>\Omega</math> || 1<math>\Omega</math>
 
| RE || emitter resistance || 0.37<math>\Omega</math> || 1<math>\Omega</math>
 
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|}
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=== Transistor operating point ===
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Each transistor has an operating point, <math>U_1</math> and <math>U_2</math>.  Both are initially assumed to be 0.7V.  Under DC conditions (<math>I_{in} = 0</math>A, <math>f = 0</math>Hz) we iterate on U to refine these two parameters.  Each iteration refines the operating point by averaging the current operating point with the associated <math>V_{be}</math>.  <math>V_{be}</math> is the base-to-emitter voltage of the transistor and is given by
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* <math>V_{be1} = V_3</math>
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* <math>V_{be2} = V_7 - V_4</math>.
    
=== Derived parameters ===
 
=== Derived parameters ===
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