Institute Newton C. Braga

Circuit Bench

Receiver for beginners (CB21662E)
In this receiver, the emitter-base junction of the transistor works as a detector. The transistor is a...
Proximity alarm (CB8486E)
This circuit, which is present in other points of this website, was found in a 90s Hands On...
RIAA Equalization (CB6317E)
The operational amplifier used on this 1968 circuit is not common today. However, the setting can be...