This circuit uses unusual Motorola components. The circuit was suggested in the 1990 Linear Databook. Transistors can be replaced with equivalents.
This circuit is from a 1982 publication. It is a sequential effect of accelerated and intermittent LEDs....
This circuit was found in an American 1980s documentation. It is a circuit that can be used to...
This circuit is from an old documentation but still current for assembly. Just use BC548 instead...