Positive to negative voltage converter (CB20998E)

This circuit was found in old Maxim documentation. Check the availability of the IC if you are going to build the circuit. The output current is 1A.

| Clique na imagem para ampliar |

Sequential unijunction timer (CB10190E)
This circuit with unijunction transistors was found in a documentation from the 80's. The trigger...
Video driver with impedance matching (CB20915E)
In this circuit of an old American documentation, the input impedance is the same as the output...
18 V Voltage Doubler (CB20180E)
In the figure we have the way to obtain a voltage of 18 V from a 6.3 V transformer with central...