Using the oscilloscope:
- The input modes for bot channel 1 and 2: this receives the sound, can be set to ground so you don’t get anything through, just channel 1, just channel 2, or bot channel 1 and 2
- Volt/Div. knob: lets you zoom in and out across the y axis by changing how many volts are shown by each vertical line
- AC, GND, DC switch: let’s you switch to either Ac, Ground or DC audio
- Vertical Position knob: lets you move up and down in the vertical direction
- Time/Div. knob: lets you zoom in and out across the x axis by changing how much time is shown by each horizontal line
- Trig level knob: lets you stabilize the waveform, can do tis to just channel 1, just channel 2, both channels using the trigger source switch
The circuit components:
Oscilloscope photo and videos:
Katherine's Analog Electronics Blog 