Institute Newton C. Braga

Circuit Bench

Bat Ear (CB15068E)
With this device, ultrasounds captured by an appropriate microphone are converted into sounds and...
Stereo Preamplifier (CB18564E)
This transistorized circuit, with germanium transistors from the 60s, was obtained in a technical...
Operational Triangular Oscillator (CB14081E)
We found this oscillator in the 1994 National Semiconductor Handbook of Linear Applications. The...