Institute Newton C. Braga

Circuit Bench

Pulse counter (CB22301E)
This circuit was found in an American book on transistors from the 60's. The transistors are...
Manual Siren (CB13165E)
In the circuit of the figure, when pressing S1 the sound varies according to the value of R2 and...
Bootstrap with capacitor (CB8939E)
We found this circuit in a 1965 General Electric documentation. The circuit generates synchronized...