Institute Newton C. Braga

Circuit Bench

Crystal Calibrator (CB22317E)
This circuit was found in an American documentation from the 60's. The circuit generates two...
Audio Frequency Meter (CB12298E)
This circuit is intended for measuring audio signals. We found the circuit in a Popular...
Two Phase Voltage Controlled Oscillator (CB13741E)
This circuit was found in an English technical documentation from 1973. The circuit generates...