Institute Newton C. Braga

Circuit Bench

Null Adjustment (CB19722E)
We have in the diagram another way to make the null adjustment of an operational amplifier. In...
Optical Switch Shield (CB4863E)
Originally this 2000 circuit was designed to be a switch to the parallel port, but with 5 V or...
Debouncer using PUT (CB8389E)
This circuit was found in documentation from the 1970s. It eliminates contact bouncing, providing...