Simple NiCad Charger (CB26201E)

This battery charger was found in the Electronics Experimenter Special Projects of 1983. The circuit uses an SCR as the control element.

| Clique na imagem para ampliar |

Relay Drive AC Stage (CB12182E)
With this circuit, a relay can be activated from an alternating signal with frequency up to a few...
Visually Impaired Electronic Guide (CB18123E)
With this circuit the visually impaired can easily locate important places inside the house, such...
Schmitt trigger (CB21475E)
In the figure we have the way to use the transistors of an old-paired pair as a trigger circuit. The...