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.
The idea of this circuit is to press the button in such a way that the flow of the LED in the...
This signal injector and tracer (follower) was found in an old American documentation. The...
This small signal generator for the bench was found in a 1988 documentation. The signals are...