Crt Clock Schematic [top]

Safety warning: The HV section stores lethal charge even when unplugged. Always discharge through a 10MΩ resistor.

: These circuits control the horizontal (X) and vertical (Y) plates of the CRT. Schematics often use dedicated tubes like the EF80 or high-voltage transistors (like the STP2NK90Z ) to amplify low-voltage signals into the hundreds of volts needed to move the electron beam. Crt Clock Schematic