Institute Newton C. Braga

Circuit Bench

Colpitts Oscillator (CB4735E)
This is a possible setting for a Colpitts oscillator operating in the audio track. The shunt coil...
Video Amplifier (CB16665E)
This circuit has its gain controlled by voltage. The circuit, which uses discrete components, was...
Power Stage with TIP31 (CB995E)
The purpose of this circuit is to provide a few watts of power to a heavy speaker with good sound...