Institute Newton C. Braga

Circuit Bench

Stabilized Wien Bridge Oscillator (CB18880E)
This well-designed sinusoidal oscillator by Wien bridge was found in ancient European...
Electronic Shower (CB18218E)
This circuit can linearly control the temperature of showers, taps or heaters up to 2 500 W. The...
Field Strength Meter (CB12931E)
This circuit is from an old publication from the 1970s. It uses transistors and germanium diodes but...