This circuit can flash for up to 30 months using alkaline batteries as shown in the table next to the diagram. The circuit is from a Radio Electronics from January 1992.
This sophisticated model railway controller was found in the November 1969 issue of Radio...
The circuit shown in the figure below is suggested by ON Semiconductor (www.onsemi.com), based on...
In the figure we have the traditional configuration of a pulsator or flasher with low consumption LED...