This circuit uses discharge tubes as active elements. The circuit is from a 1960s Signalite documentation.
The circuit in the figure uses two of the 4001's four gates to trigger a relay in a timed manner. The...
This 1968 EC&G circuit generates high voltage pulses for firing a gas LASER of the time. The...
This conventional circuit uses the 4017 to control incandescent lamps or LEDs, according to...