Institute Newton C. Braga

Circuit Bench

Logic Probe (CIR4544E)
We found this circuit in an English magazine from 1980. The circuit can be easily assembled even...
White Noise Generator (CB17603E)
This circuit appears at various points in this section and on this site, with minor variations. It uses the...
Unijunction timer with lock (CB20366
E) This circuit uses a reversible double contact relay to obtain the trigger lock with the...