Institute Newton C. Braga

Circuit Bench

Signal Plotter (CB12297E)
This simple signal tracer was found in a Popular Electronics from the 90's. The transistor can be a...
Headlight on alarm (CB7125E)
This circuit will trigger a buzzer with an oscillator if the ignition key is removed with the...
Power supply with voltage tripler (CB22342E)
This source was found in American documentation from the 60's. The diodes are germanium, and the...