Institute Newton C. Braga

Circuit Bench

Transmitters Power Supply (CB18074E)
This 12 or 13.8 V stabilized source is suitable for experimental FM transmitters that require...
Balanced Microphone Amplifier (CB15078E)
This circuit uses a TL071 to differential amplify the signals from a microphone and thus reduce...
Delay with constant current charger (CB9495E)
Found in Motorola documentation from the 90's, this circuit charges the capacitor with a constant...