This line of industrial timers and relays comprise a long list of multi-function timers, interval ON, interval ON/OFF, ON-delay, OFF-delay with auxiliary voltage, ON-delay and OFF-delay, star-delta ...

These days, if you want to flash some LEDs, you’d probably grab a microcontroller. Maybe you’d go a little more old-school, and grab a 555. However, [Jacob] is even more hardcore than that, as ...