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The single period mode as well as doubling, quadrupling, and period times eight modes were all observed, but not at resonance because getting a stable picture on the scope proved impossible.

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The Fast Fourier Transform was performed  on each state (except quadrupling, which was not working for the Labview capture).  All of the FFT's worked as expected.

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The capacitance of the diode was found, using a simple equation, to be 35.5 nF, very close to the value obtained by last year's group.