Found in American documentation from the 90s, this circuit provides three timings given by the graphics. The circuit can trigger different types of loads.
A frequency divider for digital signals can be constructed based on a single 4018 integrated...
This SCR timer was found in an old English documentation. The SCR can be the TUIC106 and modern...
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. More...