We found this circuit in the October 1996 Electronics Now magazine. The circuit uses LDRs as sensors and drives relays. The relays must have voltages according to the power supply.
Found in American documentation, this switch is based on the 4093. The load will determine the...
This circuit was found in a 90s Electronic Design. The integrated circuits are from that time....
The circuit shown was obtained from a 1976s publication for radio amateurs. Its purpose is to...