Electronics Laboratory Instruction with Oscilloscope, San Francisco State College

Oscilloscope (center of attention):

• The person on the lleft is operating a dual-trace analog oscilloscope, a standard tool for visualizing:

  • Electrical waveforms

  • Voltage over time

  • Circuit behavior

• He’s pointing at the CRT (cathode-ray tube) display area, and adjusting dials that likely control:

  • Time base

  • Vertical and horizontal gain

  • Trigger settings

Other Equipment behind the Oscilloscope:

• • A signal generator or function generator (gray box with black dials)

  • A power supply or voltmeter unit

  • Possibly a frequency counter or audio amplifier

These support tools would help provide:

• Stable signals to analyze

• Bench-top voltage sources

• Real-time frequency feedback

What the People Are Doing:

• The person on the left is demonstrating how to use or interpret something on the oscilloscope.

• The person in the middle is observing closely—maybe comparing what he sees to his own circuit.

• The person on the right is likely following along in a lab manual or workbook.

Some technical descriptions and historical interpretations were developed with the assistance of ChatGPT, an AI language model by OpenAI.