We found this circuit in a 1998 documentation. It tests common household appliances to see if they are shorted by lighting an incandescent lamp.
Simple timers can be designed using inverters or any other gate that can be connected as inverter. Figure...
Found in the Encyclopedia of Electronic Circuits volume 5 from 1995, this circuit uses a...
Found in a 1980s telecommunications documentation, the circuit presented acts as a product...