CRO - Cathode Ray Oscilloscope Working and Applications Block Diagram of CRO. The CRO recruit the cathode ray tube and acts as a heat of the oscilloscope. In an oscilloscope, the CRT produces the electron beam which is accelerated to a high velocity and brings to the focal point on a fluorescent screen. Thus, the screen produces a visible spot where the electron beam strikes with it. Explanation of Dual Trace CRO - blogspot Block diagram of dual trace CRO is shown in the fig. there are two separate vertical input channels A and B. These use two separate attenuators and preamplifiers stages. Therefore the amplitude of each input as viewed on the oscilloscope can be individually controlled. After pre-amplification the two channels meet at an electronic switch. What is Cathode Ray Oscilloscope? - Block Diagram, Working To understand the block diagram more clearly we need to focus on its major parts. Let’s discuss what are those parts which made up a device which can generate the waveform. Parts of Oscilloscope. Cathode Ray Tube. Vertical Deflection System. Horizontal Deflection System. Delay line Circuit. Trigger Circuit. Digital Storage Oscilloscope: Block Diagram, Explanation Apr 30, 2017Digital Storage Oscilloscope . Block Diagram. The block diagram of digital storage oscilloscope is shown in the Fig. Ø The input signal is applied to the amplifier and attenuator section. Ø The oscilloscope uses same type of amplifier and attenuator circuitry as used in the conventional oscilloscopes. Ø The attenuated signal is then applied to the vertical amplifier.