I connected the circuit as you told me and is now working good when I press the 'button' switch. when I arrange the dipswitches for me to give me for example 26 to decrease to 25 24 23 23....00 it works fine. but my only trouble now is that when it goes to 00 it starts back to the maximun number, i.e. 99 and not where it was saved before, i.e. for example 26. thank you for your help
It is very much appreciated.
attach is my cct diagram, I did not conect the capactiror to the switch but connected a 10k resistor instead.
now i am trying to figure out how I can 'save' my number when it restarts.
THANK YOU