Institute Newton C. Braga

Circuit Bench

Sharp Notch Filter (CB6722E)
This circuit was found in old documentation, but the setting applies to any operational. Resistors...
Amplifier with 741 – II (CB984E)
We adapt this circuit of Radio Electronics - March 1990. The magazine no more exists, but the...
Timed Motor Drive (CB1550E )
The circuit of the figure consists of a motor timer that can delay drives for up to 15 minutes....