One of the questions that many often ask when they are starting to learn about oscilloscopes is what might the difference be between the analogue scopes and the CTR, or cathode ray scopes? In fact, they are the same thing. The term cathode ray oscilloscope was simply the first name by which it went after it was invented. Over the years, and after other forms of scope came about, people started to call the traditional scope the analogue scope and it stuck. Essentially, they are the same thing.
This scope, which uses cathode ray tubes similar to what you would find in an older model television, is able to measure the waveform of repetitious electronic signals. They will add a signal and then use it to deflect an electron beam vertically and then horizontally. This will then show on the screen so that the person running the scope is able to see the signal’s shape. Those who use the scope will be able to see where there are issues and make the necessary changes.