oscillograph

An oscillograph, more commonly called an oscilloscope, is a device used to visualize electrical signals. It displays how voltage or current changes over time on a screen, allowing technicians and engineers to analyze waveforms, identify issues in circuits, and understand signal behaviors. The device functions like a graphing tool for electricity, showing the shape, frequency, and amplitude of signals. This helps in troubleshooting, designing, and studying electronic systems by providing real-time, visual insight into complex electrical activities.