Institute Newton C. Braga

Circuit Bench

Adjustable Field Strength| Meter (CB5188E)
The circuit presented may use any general purpose transistor. The indicator is an LED and...
Function Generator (CB20097E)
The operational amplifier used in this project no longer exists, but the circuit can be adapted to...
Battery Monitor (CB25098E)
This car battery monitor was featured in the January 1988 issue of Radio Electronics magazine. The circuit...