Automatic headlight shutdown (CB7260E)

This circuit for automotive use was found in American documentation from the 90s. The circuit uses common components today. The relay is 12 V.

| Clique na imagem para ampliar |

Fast Sampling and Retention 2 (CB5957E)
This Sample & Hold circuit configuration is from an American 1980s documentation. The circuit uses...
Soil Irrigation Monitor (CB16439E)
By LED flashes you can get an idea of the degree of moisture in the soil. The sensors are wires...
Electronic Defense (CB22479E)
Found in an old Popular Electronics, the purpose of this circuit is to give a strong discharge in an...