Institute Newton C. Braga

Circuit Bench

Dynamic Microphone Preamplifier (CB12829E)
This circuit was found in an old publication from the 1970s. Despite using germanium transistors, it can...
Class B 15 W Output Stage (CB984E)
This circuit, found in a publication of the year 1968, uses a transformer to drive two power...
Pulse Width Discriminator (CB5159E)
This circuit was found in an American 1980s documentation. Equivalent operational amplifiers can be...