Hi. I am new to electronics as you will guess. What I want to do (need) is to somehow put together a timer which will close a circuit momentarilly at random, time wise. so that the project will operate at different times of the day, in no given order. The project when finished would have to be small, powered by 4.5 to 9 volts. This is where I thought CMOS would be the best. Can anyone give me some pointers for such a random timer/switch device? Any help appreciated. Thanks.