The venerable Stephen Woodward recently published the design idea (DI) “Flip ON flop OFF” that converts a momentary push button to a classic push-on, push-off switch. Figure 1 is an attempt to go ...

This push-button fan switch design includes a timed automatic shut off, ... The CD4060BE is a 14-stage binary counter with oscillator, fabricated in standard CMOS logic. ... The drive circuit. T5 ...