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What are the different types of Oscilloscopes? There’s mainly Real Time Oscilloscopes and Equivalent Time Based Oscilloscopes also known as sampling scopes.   Real-time Scope: Real time Scope uses Horizontal scale to trigger and capture the desired waveform. Below shows the reconstructed   waveform.   Fig. 1. Real time Scope Waveform acquisition (Keysight)   Real time scopes are very useful for: ●      Non repetitive signals ●      Able to display one-time transient events ●      Large memory depth ●      No external trigger needed   Sampling Scopes:   An equivalent time sampling oscilloscope, sometimes simply called a “sampling scope,” measures only the instantaneous amplitude of the waveform at the sampling instant. In contrast to the real-time scope, the input signal is only sampled once per trigger. The next time the scope is triggered, a ...