Institute Newton C. Braga

Circuit Bench

Optoelectronic detector (CB12986E)
In this circuit the signal from the phototransistor is amplified by a Darlington stage and then...
Infallible Alarm (CB18744E)
This alarm circuit was found in a 1990 documentation. However, since it uses only discrete...
Digital Voltage Reference (CB24682E)
The reference voltage for this circuit can be selected digitally. The circuit is from Radio...