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.
I found this simple circuit from an English magazine from 1984. The circuit can be easily...
This circuit is ideal for recovering vinyl media with a linear response from the RIAA curve of the...
This circuit was obtained from a 1962 magazine. It can still be mounted to be powered from 6 V...