Institute Newton C. Braga

Circuit Bench

Remote control tester (CB7819E)
Found in a PE Hobbyst Handbook from 1991, this circuit uses a common photocell as a sensor. The...
Negative Voltage Generator (CB25844E)
This very low power circuit is based on the ICL7860. We found it in an Electronics Now from April...
6 V to 12 V Converter (CB13921E)
This simple converter does not use a transformer and the transistor can be the BD135 for currents up...