. Unlike standard TVs that use magnetic deflection, these clocks use electrostatic deflection
: The CRT's cathode must be heated to emit electrons. This usually requires a precise low-voltage source, often 6.3V DC , which can be managed by a regulator like the LM317 . How the Schematic Works
. Unlike standard TVs that use magnetic deflection, these clocks use electrostatic deflection
: The CRT's cathode must be heated to emit electrons. This usually requires a precise low-voltage source, often 6.3V DC , which can be managed by a regulator like the LM317 . How the Schematic Works Crt Clock Schematic