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 the January 1992 issue of Radio Electronics magazine. The circuit...
The division by eight using the 4018 is made as shown here. It isn't necessary to use additional...
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...