snooze-alarm-radio-clock

Although most readers of technical magazines will have had a surfeit of digital clocks by now, we feel that the design given here may still be of interest. The integrated circuit (Fairchild type 3817 D) is quite cheap, and it can be used as (snooze) alarm clock, radio alarm clock, stop- watch or time switch, to name a few possi- bilities. All the components will fit on a single small printed circuit board.