Engineering, 18.12.2019 03:31, Clark1212

Apure 440 hz sinewave is applied to the input of a nonlinear power amplifier in order for our perfect pitch ee senior student, jacob, to hear and his professor tune an antique piano perfectly. however, a frequency spectrum analysis also reveals that the output waveform of the nonlinear power amplifier consists of 880 hz, 1.76 khz, 3.08 khz, and 5.72khz sinusoidal components, with respective voltage levels of -15 db, -47 db, -21 db and -72db relative to the 440 hz sinusoidal output component which has an output level of 1.53 colts.

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Apure 440 hz sinewave is applied to the input of a nonlinear power amplifier in order for our perfec...