Institute Newton C. Braga

Circuit Bench

Gain Circuit for LM3900 (CB25167E)
This circuit was found in an article in the December 1988 Radio Electronics magazine. The circuit has...
Power Switch (CB4826E)
This configuration enables the use of low current switches or sensors to control high power loads...
Water level sensor (CB20727E)
Found in old American documentation, the components used are still common. The circuit directly...