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 documentation, using an operational of the time. The circuit...
This circuit is from a 1967 publication and applies to incandescent lamps up to 600 W. Triacs must be...
The TL431 integrated circuit consists of a programmable shunt regulator with an internal...