Institute Newton C. Braga

Circuit Bench

Battery Charger (CB24537E)
This charger was found in the February 1978 issue of Radio Electronics magazine. The circuit is...
Alarm oscillator (CB24323E)
The circuit is suitable for calls in a residence and was published in the Radio Electronics...
Stereo Amplifier (CB18523E)
This good quality stereo amplifier was found in a Japanese publication from the 1960s. The circuit...