Institute Newton C. Braga

Circuit Bench

Darlington Modulator (CB14800E)
This modulator circuit for transmitters was found in American documentation from 1964. It can be...
Operational and Transistors Symmetric Power Supply (CB14885E)
With this circuit it is possible to have a symmetrical source from a simple source with voltages from...
Volume Limiter (CB13361E)
This circuit is used to output communications receivers that use low-impedance headphones or...