Transistor Amplifier Circuit Diagram. The figure below shows the basic circuit of a transistor amplifier in ce arangement. Apply 9 volt dc supply for better result.

Pre amplifier circuit diagram using a transistor. Positive feedback which we will notice from the general audio amplifier. There are two types of feedback.

Block diagram of an amplifier.

We have also studied how to organize the bias circuit to have feedback. If you do not have this one 2sd30. Transistors are turned off while working in the cut off region. Biasing means setting up the correct dc operating voltages between input leads.