Institute Newton C. Braga

Circuit Bench

Commercial Portable MW Radio AT235 (CB18430E)
This 6-transistor receiver was manufactured in Japan in the 60s. The circuit is superheterodyne and has a 6V...
Neon injector (CB12983E)
With this relaxation oscillator with a neon lamp we can generate small intensity audio signals for...
Precision Heater Control (CB25880E)
Based on a CA3059 zero-cross switch, this circuit was found in the July 1995 Electronics Now...