The Tek 2465B is the pinnacle of CRO (cathode ray oscilloscope) technology. It uses something called a “micro-channel plate” in the electron beam path inside th

The Tek 2465B is the pinnacle of CRO (cathode ray oscilloscope) technology. It uses something called a “micro-channel plate” in the electron beam path inside the CRT. This device acts as an electron multiplier (electron equivalent of a photomultiplier) to amplify small signals. This makes it much easier to see transient events in single-sweep mode. The downside of the MCP is that it makes it much easier to get phosphor burn-in if you’re not careful about adjusting the intensity down as low as it needs to be for your choice of time base. The CRT itself is also just much more difficult to replace because it’s specialized to just a couple of models.