This circuit was originally suggested by General Electric in 1966 documentation to power decorative high voltage neon lamps. The transformer is 7,500 V for a current of 4 mA.
This circuit visually indicates that a high voltage is present in an outlet or other point. The...
This circuit found in a 1988 documentation consists of a timer or sequential timer controller. The...
Using a 4017 as a base, this circuit from a 1990s Popular Electronics generates low-frequency...