Initially, there was an adjustment of the potentiometer to maximize the amount of the speaker. Then, the signal generator was set to amplitude of 50 mV of a sine wave and the frequency was changed by 17 kHz. Moreover, this amplitude was set below the clipping or saturation point. Amplitude of the output was measured and the calculation of the maximum voltage gain of the amplifier was determined utilizingequation as stated in the procedure.Output amplitude = 125 mVInput amplitude = mVPart B:Frequency Responses and Bandwidth The amplitude of the input was a sine wave of about 100 mV and the amount of the amplification was decreased by at least 50%. Whereas recording the output amplitude as the frequency was adjusted fromabout 20 Hz to 500 kHz, the amplitude ought not to be saturated or clipped since the input frequency was constantly varying during the experiment.
mVmVPart D:Limit of Circuit DesignFor the recording of both the input and output wave forms, a couple of changes are required. To start with, the square wave of amplitude 100 mV as well as a frequency of 150 Hz was used and the results were as shown in the figures below:
Figure 5: 150 Hz input/output waveform with 10 (µS)Figure 6: 1500 Hz input/output waveform with 100 (µS)