| Double trace video oscilloscope | |
| Input signal applied to the CHA: sine wave signal that varies from ~ 1 KHz to 3 KHz and then switches to triangular wave then square wave, then triangular wave to return to sinusoidal at the frequency of 1 KHz.: Input signal applied to the CHB: sinusoidal signal that follows the same frequency as the CHA 
 
 
 
 Below: block diagram | |
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