BJT Differential Amplifier

  • #1
Does anyone know how to build a simple BJT Differential Amplifier circuit? And also need to gain around 20..emergency please help. Thanks for that.

As I build a circuit but is not simple enough, please have a look for that and any comment for this circuit?
CurrentMirrors_x2.png
 

Answers and Replies

  • #2
phyzguy
Science Advisor
4,778
1,733
Try replacing Q1 and Q2 with two resistors.
 
  • #3
Try replacing Q1 and Q2 with two resistors.

I see, thanks a lot
 

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