Institute Newton C. Braga

Circuit Bench

SW and VHF Preamplifier (CB15001E)
This antenna preamplifier can work with signals from about 20 MHz to 100 MHz, depending only on...
Siren (CB4726E)
This siren has already been presented in similar versions in other articles on the site, some with...
Exclusive OR gate with Operational (CB19400E)
This Exclusive-Or gate was found in old documentation, but it can be implemented today as the...