Amplifier Circuits

     This is the schematic for a simple transistor audio amplifier circuit which we were to construct during our lab on Monday.

      This is a picture of the actual circuit which was constructed from the schematic at the beginning of this post.

     This is what we measured from the previously posted circuit using an oscilloscope. The sinusoidal function is the input from the function generator, and the wave form that is clipped on the top is the actual output of the transistor circuit.

     We also constructed another amplifier circuit in lab that used an IC and was much simpler than the previous circuit. We hooked up a phone to provide an audio signal as an input and used a speaker as the output device. The circuit worked, and the signal was indeed amplified.