Crt Clock Schematic

Clock Schematic | Crt

A CRT (Cathode-Ray Tube) Clock—often referred to as an "oscilloscope clock"—is a unique timepiece that uses a vintage vacuum tube to display the time through vector graphics. Unlike standard digital clocks that use LEDs or LCDs, a CRT clock uses an electron beam to "draw" numbers and clock faces directly onto a phosphor-coated screen.

High Voltage Power Supply (HVPS): The cornerstone of the schematic, converting low-voltage DC (often 12V) into high voltage ( Crt Clock Schematic

Part 3: The Deflection Amplifiers – Making the Beam Dance

A CRT clock schematic lives or dies by its deflection amplifiers. A CRT is an electrostatic device (in most oscilloscope tubes). Plates inside the tube physically bend the electron beam. A CRT (Cathode-Ray Tube) Clock —often referred to

  1. Download LTSpice and simulate the deflection amp.
  2. Order a 3RP1A tube (available on eBay or Surplus Sales of Nebraska).
  3. Build the HV supply on a perfboard inside a grounded metal chassis.
  4. Never touch the circuit while powered.

No specific math equations were used, so no $$math syntax$$. Download LTSpice and simulate the deflection amp

Calibration: Potentiometers should be included in the schematic to adjust offset and gain for proper centering. The DAC and Op-amp deflection circuit? The software vector drawing logic?