Nicad Charger (CB13550E)

This circuit is from 1973 documentation. The transformer has 500 mA of current and the transistor can be the TIP32 mounted on a heat radiator.

| Clique na imagem para ampliar |

Relay AC Driver (CB11198E)
With this circuit it is possible to excite direct current relays from an alternating signal,...
Operational Oscillator (CB15447E)
In the figure we have the basic configuration of a rectangular oscillator using an operational amplifier...
Battery Charger (CB26303E)
This automatic battery charger was found in a Popular Electronics from the 90s. The circuit uses a...