Institute Newton C. Braga

Circuit Bench

Precision speed control (CB8015E)
This circuit was found in a 1968’s General Electric documentation. The circuit has a control range of...
VCO with a Frequency Range of 100: 1 (CB1545E )
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...
Night switch (CB7189E)
Found in RCA documentation two years 70, this circuit triggers an incandescent lamp at dusk. The...