How does the oscilloscope captures a misfiring scr?

An oscilloscope captures a misfiring silicon-controlled rectifier (SCR) by displaying the voltage and current waveforms across the device. When an SCR misfires, the oscilloscope shows an unexpected change in the voltage or current pattern, indicating that the SCR has turned on or off at the wrong time. By analyzing these waveforms, technicians can identify the conditions leading to the misfire, such as improper gate triggering or voltage spikes. This visual representation helps diagnose issues in the circuit where the SCR is used.