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Unformatted text preview: Figure 1 2. After the battery was connected we observed the sound coming from the speaker. There was the sound of a two cycle motor running. As we turned the potentiometer the sound from the speaker seemed like the motor was running harder or softer; this was dependent on the direction that we turned it. The circuit was successfully built in one attempt. IV. Conclusion The experiment revealed that a transistor oscillator is a circuit that generates a changing current; the current has a wave form. The noise from the speaker was the indication of changing current. The NPN, PNP transistor, the battery, and the capacitor are the cause of the oscillation. It revealed that the values of the resistors and capacitor cause change in frequency....
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- Spring '11
- Resistor, pnp transistor