An oscilloscope, previously cried an oscillograph, an informally kent as a scope, CRO (for cathode-ray oscilloscope), or DSO (for the mair modren digital storage oscilloscope), is a teep o electronic test instrument that allaes observation o constantly varyin signal voltages, uisually as a twa-dimensional plot o ane or mair signals as a function o time.
- How the Cathode Ray Oscillograph Is Used in Radio Servicing, National Radio Institute (1943)
- "Cathode-Ray Oscillograph 274A Equipment DuMont Labs, Allen B" (in German). Radiomuseum.org. Retrieved 2014-03-15.