The trigger shown in the figure, built around a 4093 can generate pulses that reach 1 hour with a capacitor of 2,200 uF and a resistor of 1M5. The pulse consists of a negative transition of the output signal.
The trigger shown in the figure, built around a 4093 can generate pulses that reach 1 hour with a capacitor of 2,200 uF and a resistor of 1M5. The pulse consists of a negative transition of the output signal.