Institute Newton C. Braga

Circuit Bench

Power supply for amplifier (CB23879E)
This is the power supply circuit for the amplifier in the previous circuit. The source is...
5-Range Ammeter for DVM Module (CB25225E)
This 5-range current measurement circuit was found in the September 1989 issue of Radio...
Rumble Filter with LM381 (CB25279E)
Rumble is a low-frequency oscillation that occurs in turntables due to variations in motor speed....