This 80's circuit turns off a TV or other appliance after a set time. The base is a 555 IC and the relay is according the supply.
We found this circuit in an old oscilloscope publication. With it, it is possible to observe the B...
We found this circuit in American documentation from the 1980s. Transistors can be of general use....
Originally this circuit was designed to operate with microcomputers from 1988, but it can be...