Page 28 - The Basics IA by ETron Circuit Labs

ETron Circuit Labs26Lab 142 Transistor OscillatorObjective:In this Lab you will build a simple 2 Transistor Oscillator that will generate an audio tone in a speaker.Step 1 – Take InventoryUsing the Parts Inventory as shown on the right under the “Here’s What You’ll Need” section, place each part needed for this experiment on its corresponding drawing. Observe the schematic symbol for each part. Make sure that you have all the parts ready before you begin Step 2.Step 2 – Build the CircuitUsing the Schematic Diagram and the picture of the completed lab, build the lab experiment with the electronic components. Use the “Check Your Work Here” Box to verify that your wiring is correct, and then proceed to Step 3.Step 3 – Do ExperimentTheory:A Transistor Oscillator is a circuit that generates a constantly changing current all by itself. The frequency of this varying current tells you how many times per second that a complete cycle of change occurs.This oscillator generates a signal of a few volts (3 volts, more or less) and approximately 500 cycles perLab Observations