Institute Newton C. Braga

Circuit Bench

Logarithmic photometer (CB20722E)
The indicator for this circuit is a 0 to 1 mA milliammeter. The operational is from the 70s, when...
Symmetrical 12 V Power Supply (CB20020E)
Despite being from an old documentation, this circuit is currently feasible just by using modern...
Flyback Test (CB16441E)
Horizontal output or flyback transformers are no longer used today, as they only appeared on...