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.
This circuit consists of a switched mixer with digital touch control. The circuit was found in old...
High Current Through Hole Inductors for Vishay's 5A Series IHXL-2000VZ-5A Series Power Supply are...
When this circuit picks up a louder sound it produces a pulse that briefly charges the 10 uF...