Institute Newton C. Braga

Circuit Bench

Power Siren 4093 (CB17611E)
This circuit has already been explored in other articles on this site. The high power is due to...
Lights On Reminder (CB10425E)
This circuit was obtained in a 1978 magazine, but it can be easily assembled. What the circuit does...
Automatic Control For Pumps (CB4437E)
This circuit is from a 1988 documentation, but uses components quite common today. The circuit...