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 |

Pulse Width Modulator MC34072 (CB14487E)
This high frequency modulator was found in Motorola's 1990 Linear Databook. The current depends on the...
Data interface for analog TV (CB7171E)
This circuit was found in an old Electronic Design used to apply digital signals to an analog...
Square Signal Generator (CB21243E)
Based on the frequency of the power grid, this circuit produces square signals for use in digital...