This is one of the many possible siren configurations for the 555 integrated circuit. We found it in the October 1992 Radio Electronics magazine. It has a power stage.
This Motorola circuit, found in old documentation, keeps the voltage applied to a load by a triac...
This circuit is from a documentation about the MC1723, Motorola equivalent of the well-known 723....
Here we show a simple way to use the 4088 or 4018 as a latched switch. The output can drive...