Here has been presented simple thus 0.5 to the 5 second. If uses the relay outbound, necessary puts the parallel diode on spool that would not come to the destruction BC327.
If the entrance present longer from the thus time automatically has repeated herself beside the minimal pause from 40us. If uses the relay outbound, then the pause notices in the work of relays. Usage of the larger capacity in the oscillator (0,22uF), e.g. 1uF stood to gain and time from 2-20 second. For oscilator capacity will use the block or Tantalus capacity. Broad tuning of length of durations of times thus was able will be performed on the selector 'TIME' where using two jumpers were able will change the maximal time. Two chosen times on the selector add. The larger time stood to gain the adding yet one CD4040. Clock he needs will join on the pin 1 existing, and the reset together with reset of the existing. After this get possibility wrinkles 8,16,32,64,128,256,1024,2048,4096,80192,16384,32768 the second, and with the enlargement capacity 0.22uF on 1 uF the high time is the 148945 second (the 41 hour).
Complex can work on the power supply 5..12Vdc. Price of complex without the outer potentiometer is smaller from 10HRK. Advantage complex is in does not use electrolytes which has the wide tolerance, changeability values with the time and current losses dependent about the temperature.