Institute Newton C. Braga

Circuit Bench

Oscillator 741 (CB19371E)
This oscillator configuration with the operational 741 was obtained in a European documentation from the...
Simple capacitor test (CB7060E)
The LED frequency flashes depends on the value of the capacitor tested according to the table. We...
Signal Injector (CB24210E)
Found in the September 1972 issue of Radio Electronics magazine, this signal injector is based on the...