The objective of this experiment is to look at the output signal from a transistor oscillator while changing the pitch of the sound with four sets of capacitors and resistors. I will show both waveform and spectrum for each set.
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| Circuit |
A 0.005 microfarad capacitor with: 10K, 33K, 100K, and 1M ohm resistors.
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| Waveform 10K ohm resistor |
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| Spectrum of 10K ohm resistor |
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| Waveform 33K ohm resistor |
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| Spectrum 33K ohm resistor |
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| Waveform 100K ohm resistor |
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| Spectrum 100K ohm resistor |
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| Waveform 1M ohm resistor |
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| Spectrum 1M ohm resistor |
A 0.047 microfarad capacitor used with: 10K, 33K, 100K, and 1M ohm resistors
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| Waveform 10k ohm resistor |
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| Spectrum 10K ohm resistor |
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| Waveform 33K ohm resistor |
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| Spectrum 33K ohm resistor |
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| Waveform 100K ohm resistor |
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| Spectrum 100K ohm resistor |
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| Waveform 1M ohm resistor |
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| Spectrum 1M ohm resistor |
A 10 microfarad capacitor used with: 10K, 33K, 100K, 1m ohm resistors.
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| Waveform 10K ohm resistor |
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| Spectrum 10K ohm resistor |
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| Waveform 33K ohm resistor |
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| Spectrum 33K ohm resistor |
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| Waveform 100K ohm resistor |
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| Spectrum 100K ohm resistor |
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| Waveform 1M ohm resistor |
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| Spectrum 1M ohm resistor |
A 100 microfarad capacitor used with: 10K, 33K, 100K, 1M ohm resistors.
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| Waveform 10K ohm resistor |
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| Spectrum 10K ohm resistor |
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| Waveform 33K ohm resistor |
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| Spectrum 33K ohm resistor |
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| Waveform 100K ohm resistor |
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| Spectrum 100K ohm resistor |
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| Waveform 1M ohm resistor |
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| Spectrum 1M ohm resistor |
