Institute Newton C. Braga

Circuit Bench

High stability thermocouple amplifier (CB20684E)
This circuit was found in an American documentation from the 90s. It can be implemented with...
Small Amplifier (CB969E)
This amplifier for the experimenter´s bench source 1 W and uses germanium transistors but can be...
Touch or Proximity Alarm (CB17329E)
This sensitive touch circuit that triggers an oscillator uses only transistors. The circuit is...