Institute Newton C. Braga

Circuit Bench

Digital Moisture Meter (CB25144E)
This digital indicator circuit was found in the June 1988 issue of Radio Electronics magazine. The circuit...
Locked relay driver (CB21222E)
This circuit can be used as a shield for microcontrollers. The relay is power compliant, and the...
Audio Decoder (CB3963E)
The purpose of this circuit is used in communications and to respond to signals that are in the 2...