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.
With this circuit that we found in documentation from 1989, it is possible to transform an...
This conventional 4017 sequential circuit has appeared several times in our articles and on this...
This receiver receives signals in the range of 3.2 to 16 MHz, presenting a good sensitivity thanks...