Automatic TV power off (CB5945E)

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.

| Clique na imagem para ampliar |

Low Voltage Peak Detector MC34071 (CB14486E)
This circuit is from the Motorola Linear Databook of 1990. The values of the components depend on the...
Audio amplifier 741 (CB20478E)
This low power audio amplifier was found at 1992s Popular Electronics. Transistors are general...
Crystal-controlled stereo FM transmitter (CB8460S)
Found in a 90s Electronics Now, this circuit multiplexes audio signals for stereo transmission. The...