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Related to cathode-ray oscilloscope: Function generator
cathode-ray oscilloscope[′kath‚ōd ¦rā ä′sil·ə‚skōp]
A test instrument that uses a cathode-ray tube to make visible on a fluorescent screen the instantaneous values and waveforms of electrical quantities that are rapidly varying as a function of time or another quantity. Abbreviated CRO. Also known as oscilloscope; scope.