Crt Clock Schematic Guide

The raw analog voltages from a typical DAC range from 0V to 5V. However, electrostatic CRT deflection plates require differential voltages spanning anywhere from 50V to 300V to bend the electron beam from one side of the screen to the other.

For higher voltages, a Cockcroft-Walton voltage multiplier ladder (using ultra-fast diodes like the UF4007 and high-voltage ceramic capacitors) scales up the output safely. Crt Clock Schematic

CRTs require multiple precise, high-voltage rails to accelerate electrons from the cathode to the phosphor screen. Small oscilloscope tubes (like the popular 2BP1 or 3RP1) typically require: The raw analog voltages from a typical DAC