This long interval timer was found in the September 1976 issue of Radio Electronics magazine. The output can be used to control a relay. The circuit achieves timings of up to 14 hours.
Damped sine oscillations can be produced when short pulses are applied to the input of this...
This circuit was found in a 90s Hands On Electronics. The semiconductor component is a Triac of...
This circuit uses a common digital clock to activate a relay at a programmed time. The circuit takes...