Institute Newton C. Braga

Circuit Bench

555 LASER Diode Driver (CB21011E)
This pulsed circuit was found in documentation from the 1990s. The circuit has a wire...
20 W per channel Amplifier (CB18512E)
In the figure we have one of the channels and the source of a good stereo amplifier of 20 W per...
Simple continuity tester (CB7955E)
This very simple continuity tester uses a small 1.5 V lamp (type used in flashlights). Can be...