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 is from a 1974 publication. It generates a pulse with several sinusoidal cycles from...
This circuit is indicated for applications powered by 12 V sources. The battery is 12 V according to...
This LED signaling circuit uses a programmable unijunction transistor (PUT) as a relaxation...