: Often around -300V relative to the cathode, used for "blanking" (turning the beam off) so it doesn't leave a trace when moving between numbers. 3. Signal Generation & Deflection
: Converts low DC voltage (e.g., 12V) into the several hundred volts (300V–400V) required to accelerate electrons and power the deflection plates. Crt Clock Schematic
: These circuits take the millivolt signals from the microcontroller (often via a Digital-to-Analog Converter) and amplify them to ~100V+ to physically "push" the electron beam across the screen. : Often around -300V relative to the cathode,