This circuit is from a Motorola documentation from 1968. The integrated one is an operational of the time still in metallic casing. Modern equivalents can be used.
This Colpitts oscillator with JFET has the amplitude of the signals stabilized by a diode. The...
This circuit can be used with the CIR12642E TTL Roulette, or other game circuits that must draw...
This conventional window detector circuit was found in a 1995 documentation. The trigger points, that...